I bought a new tool to play with when I was at the workshop with Sally Carver Otherwise known as Redhotsal. she has had made a handy tool for making holes in glass. Here are some pictures of it.
I thought it might come in useful and I wasn't wrong.
I made these leaves and not a mandrel in sight! I used it to make the holes to string them. I think a nice bunch of these will make a lovely necklace.
Loop Nippers a bargain at £7.99