When my grandkids were very young we showed our granddaughter her first penny machine (not a slot machine) and that started a new world of travel souvenirs for all of our grandchildren. The penny machines are those wonderful little hand-crank machines where you insert a penny and two quarters, turn the crank and you are suddenly the proud owner of a specially embossed oval penny souvenir. We even have special collector’s cases for these pennies. What an inexpensive and fun way to remember your RV travels. We have found penny machines in places all over the US and I always have some quarters and pennies in my purse just in case we see one