I built this map you can see at the bottom of www.waikoloavacationrentals.com/kolea-rentals a few months ago. I can not remember where I got the teardrops from. I just remember that I added the numbers. Do you have any idea where I can get them?
If you have photoshop you can use a "custom shape" from there. There is a built-in "water drop" shape in photoshop, just invert it and you get the shape similar to the one you have on map.