Thanks to all of you.
@Allan. I live in Montalcino near Siena, Tuscany. Nice little town. I've been looking at some great work and bought the Amati copper plate to upgrade the ones in the Pegasus kit, which aren't so great. They are medium tick.
@Roger: that could be a very nice solution, I'm just waiting to visit my parents who have a paper cutter and try it out. I haven't thought about it. Thanks
@wefalck: the old scissor works pretty well, the only problem is when the piece is too small and it's hard to sharpen the edge.
@Bob: exactly the problem I have using the scissor, so I will try to proceed with your suggestion
Thanks for your reply, it's my first time with coppering and it's not easy to work with metal compared to wood.