"Rosy" could mean actual roses, or rosy-cheeked.
What item has to do with roses?
This combo is a reference to one of Kyle Gabler's experimental games.
What experimental game of Kyle Gabler's has roses in it?
What item creates roses when burned?
Have you ever played Kyle Gabler's experimental game "Gravity Head"? What items are in that game and how do they interact?
What item in what catalog creates gravity around someone's head?
What item is showered with roses after its beautiful singing?