I find them all the time when I go on vacation, I have gotten them from Yellowstone, Black Hills, Mount Rushmore, Rocky Mountain National Park etc.
Have to admit to quite liking them Here is my one and only made on a machine at Kew gardens here in London so it realy is a penny crusher LOL
Do they make me mad? In fact just the opposite, when they bring a smile to your kid and you get out of the gift shop having only spent 51 cents. :smile Here's the best one from our recent visit to D.C.