Hello, I'm looking for suggestions about buying a frame for a picture that I recently bought. I went to Ikea but couldn't find anything that was the correct size.

I would really appreciate any recommendations for either:
a) a place selling lots of different sized frames
b) a place to get custom framing done
c) a place where you can get the poster mounted on something like plak-it

I live in Lausanne but can travel.

Thanks for any tips and happy easter!

Carly