I think I mentioned this before but I bought these last year for the Breckenridge LCDC for $30:
https://www.amazon.com/gp/product/B019RIOX12
Volume was a bit quiet but they worked well otherwise, no issues communicating with the other groups (in fact someone else who had issues borrowed mine), and they're easily recharged off any micro usb cable. They do FRS and GMRS channels - the latter used to be restricted but was opened up to non-licensed use a couple years ago.
I should really get my ham license, but since I doubt everyone will have theirs the FRS/GMRS radios are a good inexpensive option that everyone should have handy.
https://www.amazon.com/gp/product/B019RIOX12
Volume was a bit quiet but they worked well otherwise, no issues communicating with the other groups (in fact someone else who had issues borrowed mine), and they're easily recharged off any micro usb cable. They do FRS and GMRS channels - the latter used to be restricted but was opened up to non-licensed use a couple years ago.
I should really get my ham license, but since I doubt everyone will have theirs the FRS/GMRS radios are a good inexpensive option that everyone should have handy.