If this post makes your day then at least I have done something to brighten up someone
Years ago I used to power a string of out door Christmas lights from inside my shack on a timer. I had 50 feet of lights on the gutter at the front of the house. Roughly 25 feet of extension cord from the lights to the AC outlet in the shack.
Well one night I was bored so I made a coax pigtail up and connected it to the male plug on that extension cord. Hooked it up to the tuner and tuned it up on 40 meters. So basically I had a 40 meter loop, although it was a bit longer than it should have been. If you factor in the double wire on the lights that made that length 100 feet, and another 25 feet of extension cord.
It tuned easily on 40 meters. I was talking to a friend across town on 2 M FM simplex and we went to 40 SSB and had a QSO.
Then I thought "Well might as well fire up the amp and see what happens"
Put about 300 watts into the lights and my friend said my signal came way up!
I wonder if those lights were blinking off and on with the SSB modulation?
So it can be done and you are on the right track by thinking about that idea. Go ahead and try it. As someone said you could hang some fake lights off it and they would not be part of the antenna then.
I doubt that 100 watts would make a 50 foot string of Christmas lights light up but who cares if it does? Your neighbors might enjoy the light show at night!