I need simple and easy.
I do not own a sewing machine (although I wish I did).
I love this number birthday applique template that I found at www.youcanmakethis.com. (Great site by the way!)
All I had on hand was the fabric glue and fabric paint that I used when I made the twins birthday t-shirts.
I layered two different patterns on a onesie and used the fabric glue and fabric paint to adhere everything and it turned out super cute.
It totally worked for me!