"Top-20 uses for data's detatched head" joke

Combination paperweight/stapler for Picard's desk
The ball in Parisis' Squares
Hood ornament for Shuttlecraft
Replace Troi's broken Chia Pet
Scare blind students in Braille class
Prop open doors for maintenance crews
Lawn decoration in Arboreteum
Footstool for Captain's chair
Entertaining kids in day care puppet show
Scare Alexander into doing chores
Send to doctor that killed Crystalline entity as gag gift
Decorative air filter in Picard's fish tank
Send to Starfleet Android research center so they can get "ahead" in research.
Trade to Ferengi for Star Trek Hologram cards
Two words: tether ball
Keep Worf's coffee table from shaking
Centerpiece in Ten Forward buffet
Donate to Starfleet Academy to be head of the class
Use as nutcracker at Christmastime
Prove to insurance company he died so crew can collect on his life insurance policy