Assuming you mean a DIP package, compare the pinout for the 10F, to the pinout of the 12F in the attached image.
You'll need some way of making the 10F pins match the layout of the 12F.
You could try using breadboard and short jumper wires inserted in a 8-DIP socket, then inserted in the ZIF on your programmer (assuming your programmer supports 10F devices) or if you have some stripboard, a 8-DIP socket and some header pins, you could knock up an adaptor.
Failing that, you could buy a programming adaptor from Microchip, AC163020:
**broken link removed**
I have made a stripboard adapter, but I can't find the lead for my camera. I'll do a quick mockup in mspaint and post back shortly......