I like it. I am not sure I want to go full Devo and attract them to a sticky flower pot on my head. Plus I am sure I would inadvertently do the desperation hand flail over my head and knock it over stuck to my baldish head.
Interesting that blue is the most deer fly attractive color. I have heard that apocryphally about mosquitoes as well. That color is at least something to avoid.
Some of the places I visit are deerfly hell. Greenheads on the eastern shore, whatever they are colloquially called I hate those annoying head circlers, and they are ambushers waiting for movement.
In one hellacious deerfly location I have to stop the truck, get out and unlock a gate. Windows up before I even slow down, jump out, do not fumble with the key dammit, jump back in, squish any invaders against the windows or dash.
Greenheads seem quite rugged; a simple smack sometimes just leaves them stunned, even laid out motionless with wings akimbo they will revive and put themselves back together. If they are not squished they are not dead.
The next mile down the dirt road through the dense piney wood features an accumulating army of deerflies attacking the truck, the hood, the windows, they are especially thick in the vortex behind the side view mirrors.
When I get to the end of the road I have to sit motionless in the truck for a few minutes and wait for the cloud to dissipate.
Paddling small streams in deerfly country I never want to be the lead canoe, but you can only trick novices into leading the way one time. 20 or 30 feet behind their stern is often bug free.