Here is a keychain you can find at Toys R Us. It's seen here carded, on a peg. It's made of that layered rubber that takes detail well, and is just classic style Sonic's face, with a loop at the top, & the key ring behind. It's not too big (unlike others on this page) so it would likely work out well in actual use. The rubber stuff is durable too. 2013 spring release. Do you know how much this is?