When we lost scenarios, it took a lot of imagination and fun out of the stages. Speed shoots can be fun but if you endlessly put up 3 or four targets stapled together at the same distance it does become boring.
Use some simple props, BBQ, Bed/mattress, table with playing cards, drink bottles, beer cases, mock ATM, etc.
Don't get stuck on how many targets to use or how to use them, a single target with a bill drill, 3 rounds per target on a couple of targets, or 1 round per target and 5 or 6 targets. At the North Americans in '92 we had two back to back stages, each had one target and only 2 rounds per stage, one was empty chamber start and one was a loaded start. Of course we had 30 stages on the Sharon club property for that match so you can get away with more variety. And out of those 30 stages 22 would have qualified as speed shoots, a few had 10 rounds but there were no round count rules then. We had stages with grocery bags, beer cases, dog leashes holding up target arrays, wheelbarrows, coolers, a box with snakes covering your gun, a baby, a cash register, card table with cards, a bank machine and a helicopter (mock ups). Vary it up a bit, an all steel stage is fun or use some Virginia Count or Fixed time stages. Strong hand only while holding a bag of money while engaging 5 targets one round each on the small targets....wait, ignore that idea...I might use that...