There were multiple head-ons on the highway yesterday.

She has a collection of put-ons.

There were several follow ons to the original proposal.

Those ones are my favorite.

There were several knock-ons during the rugby match.

There are many live ones in the aquarium.

I saw some big ones at the store.

Traveling and trying new foods are my biggest turn-ons.

I bought three roll-ons for my trip.

I have several all-in-ones in my wardrobe.