Small Scrap Composite Parts

I’m looking for donations small scrap parts for professor at my university. If you have any small parts that would ship for less than 10 or 15 bucks that would be greatly appreciated. The part would be used for show and tell in class.

He teaches a basic manufacturing class and has been covering metal and plastic manufacturing but he would like to now also include a section on composites. For every lecture he likes to pass around a physical part made with that process, i.e. when he talks about forging, he passes around a forged wrench, cnc milling, a milled part, wire edm parts etc.

Thanks!