Okay, my two favorite pokemon were Mismagius and Absol.
For the userbar decorations I think I'm gonna offer the RNG's, some legends, and services like cloning, Move Tutor Moves, EV Reducing, and Items can all be under the same thing.
So Pokewalker RNG's with the pokemon Beldum
Legends with the pokemon Giratina (The one without the feet)
Services with the pokemon Gardevoir
If Pokewalker RNG's doesn't fit try 'Walker RNG's
I'll try to get the image and background for the other thing you want to do soon.