I am starting a new quilt for guess who? My two West Highland Terrier dogs. I saved all of the triangle collars that the groomer put on the dogs after grooming. So after several years of saving them; and of course new to quilting -- thought it would be a good idea to make them their own quilts. So any ideas? The triangles are 15" square with two put together and some are smaller at around 13" square with two put together.

Should I square them all up the same size? Should I try to strip piece this? Should I just sew two together to make a square and cut HST? Help. What do you think?