Hi Leigh Anne- You have heard some great suggestions, but when you need multiples, the Dollar store plastic mugs, (usually bearing a sports logo) work well with flat silver spray paint. Also, printing/sign shops have many "mis-prints" and donate those to schools.

Academy Sports has metal camping mug for around $3 each. We are using these.

since we performed B & B a few years ago, I have collected (and even continue to do so) those pewter tankards..... I have purchased them from Goodwill usually for $1. or less. I believe I have about 20-30. Check you Goodwill stores!!!!! Robin L

We bought a bunch of plastic ones that looked like glass from the local grocery store. they worked great!