Being budget mindes also and needing a template I
remembered I had a few of those vinal self stick floor tiles left from doing my bathroom. cuts easy with scissors and works perfect. I know you can buy them at the dollar tree stores for 1.00 for 3 I left the paper on the back but you could cover the sticky side with some fabric to keep it from slipping. I have also used the acrilic from a poster frame. A little tricky to cut, you have to figure out how not to get the little cracks on your template but once done I covered with clear contact paper. Those worked really well.