Birth of a rinky dink project

The hot spell is over and I've taken the parasols down.  I pulled the rebar out in most cases.    In a few cases, where it was difficult to figure out the placement for best protection from the sun,  I left the rebar in place.

But I didn't like the bare rebar that I could see from the back door....

So I got some old light globes out of a box in the basement, stuffed them with bubble wrap and put them on top of the rebar.   That looks better.  However, I'd like to add some color.  Any ideas?  It has to be simple because I will be taking these off and putting the parasols back when the heat returns.

S