Offer a consumable item in the daybreak store that can remove prestige from an item slot, until the item is removed/aug removed. And require all other slots prestige removed before allowing weapon slots to have prestige removed.
This could be a nice money maker if they tweak the idea. Make a single item non-prestige (this is probably more codable).
That might work, but I think they'd have to code duplicate items for all prestige items, then. One with the prestige flag and another without.