An example a type of non-tradeable rewards I would like to see: Free space travel to an other planet. Use your non-tradeable mission tokens to buy a space travel to an other planet on a NPC Ship. The reward itself don't have any tt value, but for the player it have a value. Okey, the planetpartner maybe don't like players to live their planet, so they would not like that kind of reward... But similar type of rewards that you only can use for yourself and can't be transferred/sold.