OK. Have my marching percussion rack done for the school. I need to find a source for the plastic plugs you would put in the ends of steel tubing. I have bought some in the past for a project I built out of square tubing but the place I ordered them required a HUGE minimum quantity. This wasn't a problem before because I needed a lot then.

For this project I need 16 plastic plugs that will fit in 1" OD round steel tubing (14 ga. wall thickness) and 1 plug for 1 1/2" OD tubing (also 14 ga.). Anyone know of a source for small quantities of something like this?

By the way, tubing CAPS that fit over the OUTSIDE of the tubing will not work in this application. They need to be PLUGS that fit INSIDE the tubing. Thanks.