I have a memory of a 70s-80s TV show or movie with a small group of people who have powers given by objects (medallions?). I recall a scene where they are in jail without their magic objects but somehow retrieve them.
I don't know if it's related but I also remember a scene on an icy lake with ice vehicles of some sort (ice sailboats?) and a beheading by sword. I'm not sure that's related but it's in my brain and they feel linked. When I was a kid I always thought it was Ice Pirates or maybe Time Bandits. I looked at The Phoenix (TV Show) and found he has an amulet that gives him powers and in the pilot he's in jail for a bit but I'm pretty sure that's not what I'm looking for.