Umbrella or parasol

Pipe

Wave

Wrap, Rap, Rapped, Wrapping

I know "wrap" and "rap" are only related by sound, but they can share a day.

Lock

Summer

But, Butt

One can't be pictured, and the other shouldn't be shown.

Just play.

Part

NOT Party. Party is here.

To part (to leave or to separate) or forms of that word, a portion or part of something, or the adverb "apart" or replacement elements for cars or appliances (only if it's called "a part"--we're after the word "part", not after "bolt" or "hose). "Depart" is okay.

May

May the month or may in the wishful or conditional way.

Pool