I want to give a fun favor for Charlie's birthday that the kids will actually like. I wanted to get Charlie a doctor kit, and came across this real stethoscope for only $3!

http://www.allheart.com/product.aspx?p=ahdst0100&green=F09AB34D-FC2C-53B7-91B8-D86DBF15B1AA

I think the kids will love this and they can hear their own heartbeats! What do you think about this as a favor for 3 year olds?