Idk what I was thinking for this one.
Here we have Vinyl Scratch/DJ PON3 from FiM
Vector from Sonic the Hedgehog
Heavy Beats Guy
and one I thought up off the top of my head- DJ Crazy Machine (named after a forgotten TF2 Freak)
Ah, that's one thing about Gmod that I love- you can throw logic right out the window and cross over as much shit as you want without looking like a noob.