I know you might not, but could you do some raffle or a free way for ftos to get froads?
We usually raffle off free myos during events. We also make fto limited slots during myo sales so ftos have a better chance of getting a slot! (fto slots rarely sell faster than a week so they're pretty easy to get)
You can earn enough Amberdimes to get a common or even rare slot if you submit one prompt for our current event! (depending on the amount of bonus froads/objects you include) We don't have any slot sales planned yet but another one should come around new year's or a bit later.
atm with the size of our group bi-monthly or tri-monthly fto raffles don't really make much sense because of the low demand, if there's more fto users we might consider something like this in the future