Heth Smeth

I have had my camper a couple of years now and started with making curtains that were shaped exactly like each window and suckered onto the window itself. these worked quite well but the suckers didn't like the stripy window glass (heating elements) so i am working on plan B. I've seen a cool idea of using net curtain wire that is connected with hooks round self-tapping screws into the plastic bodywork. however, I would like to use the half poppers that seem to be placed for curtain tie backs. Question: has anyone found the other half of the poppers that can be attached to straps to attach the tie backs to the popper on the bodywork? thanks in advance for any advice given,