Answer: balloons

AnswerCrossword Clue
BALLOONS

Party poppers

BALLOONS

Party decorations

BALLOONS

They may be sent up in trials

BALLOONS
Puffs out
BALLOONS
Clowns' toys
BALLOONSSwells up
BALLOONSGets bloated
BALLOONSSome party decorations
BALLOONSMalcolm Forbes' collection