Home-made pop-up targets

[I'vebeenduped]

I have searched previous threads and I have found nothing on this. I even practiced some google-fu and I was unsuccessful. Does anyone know of a reasonably priced way to make pop-up targets? The type for purchase are WAY over priced. It could be that my google-fu was malpracticed. My wife frequently reports that whatever it is that I am looking for is usually directly underneath my nose. I hope that is not the case. At any rate, has anyone in this forum made this type of thing successfully?

 

[Rembrandt]

Here's a computer operated system or club has. At one time it was a patented system, may have expired by now. Operates on compressed air, solenoids, and low voltage. Prairie dogs sit in tubes below ground, air pressure pushes them up, when you hit one it falls over and retracts back into the hole which resets it. Series of eight dogs pop up and down at random by the computer program. Speed can be increased to match shooters skill level.

Featured on cable TV outdoor channel and in Varmint Hunter magazine years ago.

At the time cost was about 5K installed.