This is a bonus puzzle! Successful completion of this scavenger hunt earns you the answer to a puzzle of your choice (excluding the meta).

Gather 9 items. (All items must be physically present.) Each item must match at least as many uncommon properties as common properties. Uncommon properties may only be used once each. When you have assembled your items, request a call, and a member of headquarters will visit your team. You may also request a call to ask about whether a given item has certain properties.

existed yesterday
manmade
nonliving
permissible as airplane carry-on luggage
solid
stable at room temperature
weighs less than 100lb

abrasive
African
ambidextrous
Australian
award-winning
bejeweled
bilingual
brick
cardboard
chocolate
copyrighted
cosmic
counterfeit
crimson
damp
Disney
edible
effervescent
electric
erudite
flexible
fluffy
formal
free
futuristic
hideous
iambic
immoral
iridescent
keeps time
literary
longer than 6' in one dimension
loud
magnetic
minute
older than one of your team members
papier-mache
pastel
pointy
polka-dotted
recyclable
Republican
ripe
rippling
round
says "Harvard" on it
says "Yale" on it
self-propelling
serpentine
shiny
sliced
smelly
sour
sparkling
spicy
squeaky
striped
stuffed
tainted
translucent
trapezoidal
unlucky
upside-down