Super easy and cheap fix to make potty seat fit
elongated toilet seats! Materials needed: 1/2" pvc pipe 7.5" long total length, silicon tape that sticks to itself (fixes leaks in plumbing pipes - Rescue Tape is a brand name but any will work) and one child's toilet seat with hook slot at rear of seat.
Talk about a hot seat! This toilet seat actually hooks up to the trailer hitch of a pickup truck or SUV...for those times out in the woods and you just gotta rest a while. LOL!