There are four items that are either needlessly rare, or impossible to come by in survival mode. It would be great if they could all be created (either directly or indirectly via a secondary yield recipe) out of UUmater.
Possibly it's just easiest to insert four new UU recipes which would create:
Red dye
Yellow dye
Cocco beans (I think they're used directly?)
Bone meal (it's used directly and a non-passive/neutral mob drop)
It would also be nice to create ink-sacks since killing squid to get them does not seem fun (and, if even possible, farming the squid adds more annoyance than fun)
Actually this is almost a requirement, as mobs are scarce and non-renewable resources in 1.8.1