Museum grand opening. Help Maxwell populate each museum room with one unique art or history exhibit. You will need 3 different entries from the different exhibition categories to obtain the golden crown.

Art exhibit: painting, picture, portrait
Photography exhibit: photo, photograph
Jewelry exhibit: necklace, ring, earring
Artifact exhibit: artifact, pottery, relic
Sculpture exhibit: sculpture, statue, bust

Scribblenauts Remix 11-3 Cheats Hints gallery:
11-3-1-a: Grand opening! Populate each museum room with one unique art or history exhibit!
11-3-1-b: Painting and sculpture make great exhibits.
11-3-1-c: Photography and jewelry also make great exhibits.