Not necessarily HAM, but I just bought a pair of T800s[0] to use when I go camping with my 4yo son and friends. I'm trying to get him to understand how radios work so we have been having fun talking and learning how to use call signals, etc. What I really liked about the T800 is the Bluetooth modem that you can use to send extra data between radios (like chat and geo coords).

[0]: https://shop.motorolasolutions.com/t800-two-way-radios/produ...