I would create the "Burger King" Ball. This would not only let you capture a pokemon 15 levels above you, it would also bring you a double whopper with cheese, and a large fry

The decimeter ball. I automatically destroys the Pokemon if you believe the pokemon is not able to be caught / won against. It can be used against the gym leader's Pokemon as well.

a SPEED BALL  to catch pokemon faster than the first pokemon in your party probably like latios and latias because in pokemon soulsilver and heartgold raikou, entei, latios and latias will run away right away

I would call it the Robber Ball. It would be the best if you are facing a Pokemon trainer and he/she has the pokemon you've been looking for for a long time. That's when the Robber Ball comes in.

Everyone keeps choosing to make balls that are basically overpowered, or with uber capabilities.

Mine is simple.

It is called the Poverty Ball. It is the direct opposite of the Luxury Ball. Instead of starting out with increased happiness to help with evolving, it actually brings the happiness level to the lowest it can go. This is useful for trainers who utilize the move Frustration.

Is has the same capture rate as a standard Great Ball, and costs 1500 in the store

If I could make a pokeball it would be the Double Ball, this ball has double the effects of a great ball, can catch a pokemon, twice your level and can hold two pokemon, until you bring them to the pokemon center and put them in the pokebox storage system.

My Poke Ball would be the Trainee Ball. This reduces a Pokémon's level to 1 when captured. Makes it harder to train a Pokémon. It has the catch rate of a regular Poke Ball and is sold at the Poke Mart for the same price as a regular Poke Ball.

I have an idea for a Poke Ball, it's called the Miracle Ball. Whenever you poison,burn or paralyze a pokemon in battle, this ball recovers it's HP as well as its status when you capture it.

Catch Rate: 60-80%

That would be my idea of a poke ball.

i would make a How about the legend ball? It could be used to catch legendaries! i have more ideas here they are Drake/Draco Ball: Has x3 the catch rate on pokemon from the Dragon Egg group.

Status
Ball: Has x2 catch rate if the pokemon is parlyzed and asleep, x3 if
its poisoned or burned and x4 if its frozen. Since makeing pokemon
paralyzed and asleep is easier with TW and Spore which have better
accuracy than Will-O-Wisp and Toxic and to get a pokemon frozen is
really luck.

Copy Ball: If the pokemon has one or more moves
that your current pokemon outside has then the catch rate is increased
by the amount of moves in common. 1= x2, 2=x3, 3=x4 and 4=x5 (good
luck).

Evo ball: Has a higher catch rate on evolved pokes. x2 on stage 1 and x4 on stage 3.

Freeze ball: Same catch rate on Ice-types that Net Ball has on Water/Bug-types.

Mineral ball: Same as above only difference is that this goes for Rock/Ground/Steel-types.

Nature Ball: x2.5 catch rate on Grass/Bug/Poison-types.thats my ideas for a pokeball

I would say the Rainbow Ball.Its a Poke ball that can catch every Pokémon that has at least 1 type color that's in the rainbow.The other colors will not be caught.Here's a chart of the catch rate of each color.

Red:Fire.Catch rate:x6
Orange:Fire:Catch rate:x5(The catch rate on Red is a 10% chance)
Yellow:Electric.Catch rate:x4
Green:Grass:Catch rate:x4
Blue : Water,Flying.Catch rate:5
Purpleoison.Catch rate:x4



This Poke ball might be a good one.

Here are 3 of my ideas:

Pokéball #1: Fail ball

Information about: It is the worst pokéball every in history, sell it at a pokemart to go bankrupt! >


Catch Rate: 1 in 160,000,000



Pokéball #2: Awesome Sauce Ball


Information about: Catching a pokemon gives you the most awesome sauce in the world!


Catch Rate: 1 in 3 (33.3333333333333333333333...%)




Pokéball #3: Bad Ball Of Death (BBOD)


Information about: This ball is so bad, it kills the pokemon after capturing it, making it useless, and if you run out of pokemon, it is Game Over! D:


Catch Rate: 110% (1 in 0.9)




Those are my ideas.

Hmm these are all great ideas for new Poke balls IMO. I have another ideal for a Poke Ball, the Legendary Ball. It can can any Legendary type without the slightest difficulty.

Catch Rate- 80-100%

I would create a Poke ball made out of diamond and a Black hole like suction when it traps the Pokémon. Nothing will be able to escape it.

A fun kind of Pokeball would be a ball that can catch any certain type of Pokémon. Sort of like a mini Master Ball. Some good names are:
Aqua-Ball (Water-types)Venom-Ball (Poison-types)Leaf-Ball (Grass-types)  
Void-ball (Dark-types)                                                                                       Spook-ball (Ghost-types)                                                                                   Snow-ball (Ice-types)                                                                                       Etc., etc.


                                                                                 

Clamp ball
Really high catch rate but will give you're poke -30 happiness

Training ball
Doubles EV gains/Doubles EXP(Not sure)

and maybe some +Stat balls
Muscle ball gives +Attack or something

The Heaven Ball would be cool. Has 5% boosted chance for getting Pokerus and works better on  Dragon and Flying types.

I would make one called the item ball, it has half the chance of a Poke Ball if the Pokémon has no item, but has the same chance as an Ultra Ball if the Pokémon has an item, if it catches a Pokémon that wasn't holding an item it gets a rare candy. It only costs 500 Poke.

The Legends Ball. If the Pokémon is a Legendary Pokémon, the catch rate is increased by 50%.

Shiny Ball: It can catch any shiny pokemon, if used against a regular/legendary pokemon, it will have the effects of an ultra ball, it also fully heals, and evolves the pokemon caught, after the battle.
Color Scheme: Gold
Found: PokeMart for 24,000. (Can also be obtained from fighting a shiny pokemon(After it faints) or a pokemon that blocks paths such as snorlax, or sudowoodo, (these pokemon will be holding them))).
I would love to have that ball!!!

Here is another idea of mine:

Experience ball.

When capturing a pokemon, depending on what type of pokemon it is, the exp it earns normally gets multiplied:

Normal: x3
Legendary: x5
Shiny: x7

For pokemon types:

Fly type: x2
Dragon type: x2
Ground type: x2
Rock type: x3
Grass type: x3
Electric type: x3
Others: x4 and x5, depends on luck.