I bought a set of geometric pens for my art project.

The farmer built several goose-pens on his farm.

Many authors use pen-names to protect their privacy.

I have many pen friends from different countries.

She created beautiful pen-and-washes in her art class.

I have many pen-friends from different countries.

I bought a set of ruling pens for my art class.

She made several slips of the pen while writing the report.

I bought some keelyvine pens yesterday.

I bought some keelivine pens from the store.