About to rearrange dd's bedroom. She'll be sleeping on a top bunk and have just realized this will entail her head being right next to a pretty ugly air vent. Guessing it would be sensible to keep the vent - its a small room and don't want to go to the effort of removing/replastering. Had thought a patterned, decorative grille could make a nice feature, but cant find any anywhere - will need to be adjustable too - any ideas?