Bowling pins is the first thing that comes to mind but other than that I'm also wondering what objects commonly come in sets of ten.
dimes in a dollarnickels in a half dollaryears in a decadepennies in a dime
Some things that come in sets are:bookscoffee servicedishesfurnitureglasses (for drinking*)knivesmoviespots & pansrecordssheetsshelvesstationerystemwaretea servicetires*eyeglasses come in pairs
Quads.
Triplets.
Try sets of two. It is an easier number to handle.
1 dozen eggs.
Days of the week underwear.
Possibly dozens because a dozen is 12
results of roll no 10125
5 points on a star A < > V
Some common things that come in sets of eight include octopuses' tentacles, spider legs, and pieces in a standard game of chess.
a dozen eggs, or doughnuts, 12 days of Christmas