I rode for months with a 'suicide' set up ie, a cog rotafixed onto a normal hub and a BB locking ring to make me feel like I'd done something. The important thing was, I USED MY BRAKES. Back pressure for controlling my speed sure but not for stopping, major slowing or skids. I used this set up while I saved up for a cheap but decent wheelset ... which is now ten years old and is sitting in Ol' Rusty as it happens, buy sensibly and cheap doesn't equal rubbish.

Mate, fixed gear does not equal skids. Fixed gear does not equal brakeless. You can do these things but if you want to, you need to set your bike up properly first which means good foot retention and proper fixed hubs with locking rings. Until then, just enjoy the ride (brakeless and skids don't actually add a great deal to the experience anyway, a bit but not as much as some make out).