Here is a suitable poem I wrote on wasting water. I hope its good enough for you! It is 117 words and has a lot of poetic devices such as similes, personification, onomatopoeia, etc. :)
Stop with the water wasting
Instead stick with educating
the younger generation
to help save the nation
Quit those useless water fights
it's as useless as the scam websites
slosh, splash goes the pouring of water
that could of been poured onto a dying plant
or the mouth of a child who wishes to have just a drop
Step out of your hourly showers
That could of been fed to hundreds of flowers
Turn the running faucet off
It's legs are bruised from running all day
Water, water, water
What would we do without you?
You are always by our sides
In the ocean, and in our homes
I'll be in bones
if you keep getting wasted
