Polypropylene or polyethylene sheets source (on-line)

Just wanted to see if anybody knows of good on-line source (preferably in USA) where I can order Polypropylene or polyethylene sheets … I am after these translucent (both flexible and rigid) sheets.

I found some at mcmaster-carr (mcmaster.com) but color choice is very limited. I need more colors but was unable to locate retailer.

anyway, any reccomendations appreciated.



I have purchased smaller quantities from AIN plastics before, they also were friendly enough to give me access to their warehouse to handpick pieces.