The 50 gram tins are used for little travel pill tins.

Been wanting to try and make a single fire starter out of the round, MacBaren, 100 gram tins. Cut up some corrugated cardboard to just under the height of the tin and add melted bees wax. Haven't gotten that far, yet.

Another one holds dryer lint with a light coating of Vaseline, used for pull apart fire tinder / starter.

Some have been used for small gift wrapping. Others hold various numismatics.