OK, here is another quilt that uses 2.5's. I really should stop opening up websites, Tee-Hee-Hee! But what fun is that? This quilt is not all 2.5's but it uses a lot of them. Or you can use charm packs that you cut in to 2.5 or you could cut up a layer cake I have a couple of both on hand and I bet you might find some hiding in your stash. I like this gal's clear concise directions and have made some of her patterns before with good results. The quilt is not large but I sure like the impact of her color choices. This is video directions from Laura of SewVeryEasy. Enjoy!
https://www.youtube.com/watch?v=8AmQx-nzpqI