I bought my first heathersue design, and I don't even have an embroidery machine!

My friend has an embroidery machine, so we had fun making mickey cupcakes! The only problem is, I nicked a hole in the t-shirt while trimming the fabric. Any ideas on how to keep it from falling apart? Or do I need to start over?
After we made the ones to go with the cupcake skirts I plan to make, we decided they would make good 4th of July outfits too.
I made these shorts for my friend's DD, now I have to make 2 prs for my 2 DDs!

Nothing like waiting until the last minute!