We've had many requests for these, and I finally have them done!
I've got three sizes right now:
Small - 7.5cm x 20cm
Medium - 9.75cm x 25cm
Large - 10.5cm x 28cm
They are laser cut, thoroughly sanded and then coated with a minimum of three coats of polyurethane to preserve and protect. These come in sets of two, with thumbs.
As well, I can make these in whatever dimensions you need - just send me a message or email and I'll customize to your requirements.