Arm warmers question:

[crazeejaney.livejournal.com]

For those who have made armwarmers out of toe socks before :

I want to have a thumb hole ...
I'm not sure about the rest of the fingers though.
I don't have a sewing machine...would it be easy/okay to just sew it together to make sure the threads don't screw up / fall apart by just folding a tad of the fabric? Is it even necessary?

If anyone have pictures of arm warmers made from toe socks that'd be real cool so I can look at it 'cause I'm bored. Thanks. XD
<3 Jane