LOL, I was joking about that with my wife the other day! Anyone have any endangered tree frogs they can loan me for a few months. :-)
If the local government hired a third party appraiser rather than using their own in house staff you probably do not need to get your own appraisal. The third party appraiser is not likely that far off from value. PM me if you really want a suggestion for an appraiser that works in PA.
How about a box of spotted newts? We have oodles of em.