There are dedications on benches all over. I assume people pay the State Park Service to do this for them, and while the ones I've seen are probably for people, I don't see why pets would be disallowed.
I know of one off-trail grave marker for a dog at Bass River SF. Of course these are not technically allowed, but since it isn't visible from the trails or roads nobody is likely to remove it.
I often come across other displays, like wreaths or flowers. Again, not really allowed, but it doesn't get taken away as litter as long as it is in good condition and tied to something so it won't blow away. No nails. No balloons! Balloons are evil.
So yes there are ways.
My guess is there were at least 50 of the blue paw prints, most of which are impossible to get off without leaving some damage. That's way over the top.
I know of one off-trail grave marker for a dog at Bass River SF. Of course these are not technically allowed, but since it isn't visible from the trails or roads nobody is likely to remove it.
I often come across other displays, like wreaths or flowers. Again, not really allowed, but it doesn't get taken away as litter as long as it is in good condition and tied to something so it won't blow away. No nails. No balloons! Balloons are evil.
So yes there are ways.
My guess is there were at least 50 of the blue paw prints, most of which are impossible to get off without leaving some damage. That's way over the top.