REQ: Textless "Sonic the Hedgehog" Artwork

[Moviefan2k4]

I'm looking for high-resolution (vector if possible) copies of the main artwork for the following "Sonic" Genesis titles. Ideally, I'd like them to not have any logos on them, either.

Sonic 1
Sonic 2
Sonic 3
Sonic & Knuckles
Sonic Spinball

Thanks!