The current Tiny Kingdom pin series for both Disneyland and Walt Disney World are some nice ways of doing this. You can buy a banner map and then collect the icon mini-pins to put on them.
Not cheap, as they are quite popular with pin collectors, but a very nice presentation.
Samples of the maps (there are a few released so far):
We decided to scrap our original Idea as we are now DVC members, we feel that we are going to be able to visit a lot more places in the world.
It’s taken a while but we found a map which we have got framed. It has a small 2mm gap behind the glass so we can put pins in of all the places we visit in the world.
Where I am stumped is what colour pins to use? I wanted to do something like red pins for each of the Disney parks in the world we’ve visited. Then Maybe Blue ones for all the places we’re visited as part of a cruise?
What colour do I do a place like Vero Beach? It’s not a ‘Park’ in the world but we do own DVC here.