Just joined forum and loving it so far.
I bought a usa made whiteside creeper with adjustable headrest 3 or so years ago. Found them after talking on phone with snap on about their creepers. Lady asked me if i wanted to know who makes them for them, uh sure. Whiteside. Worked for me, i just wanted a good creeper. Didnt have to say snap on.
Very happy with it, think i paid around $70 on ebay, looks like about $100 on their now. Casters even say Usa. I like the V shape in frame for arm relief. The adjustable head rest is great too. Wouldnt own one without it after having it.
My dad has a Harbor freight plastic one. Its decent but more then once it pinched my arm skin in a caster, not cool. Hasn't happened with whiteside, their casters are more covered up.
Whiteside sells china stuff too, but their website is very clear about what is usa and whats china. They make other stuff too.
Heres the one i have:
http://www.whitesidemfg.com/creeper items/mtlv6-adj.htm