Hello,
embroiderydesigns has many twin-designs but you have to watch the prices (sorry but 25,-$ for a single design from Gunold is really expensive).
ATW has very funny twin-designs in Benny&Boo (2.link just 1,79$ :o).
Greetings, Bettina

*4U

Here are some. Hope you can find something suitable. Hugs Terre

I went through this a couple of week ago. I found the twins playing patty cake on chiocciolaricami.com/gratis%204.htm. They turned out really cute. They are about half way down on that page. Also other pages of freebies. Hope this helps you. Looks like you got a lot from the cuties. They are really great. ♥

You should also try our own 10tje's site. She has some lovely twin embroidery amongst her latest designs, and they are free and beautifull. You must scroll quite far down, but every one of her designs is just beautifull.