In the plinking targets I've used the most 'visceral' when hit are Charms Mini-Pops. They make almost the identical sound of when a pellet hits a ground squirrel smack in the head. And an added benefit (of the Mini-Pops, not the ground squirrels) is that if the wind is blowing towards you, you get the sweet smell of the sugar which you just powdered.
Cocktail picks are another favorite of our group, as well as frilly toothpicks, colored match sticks, coffee stir sticks and sandwich picks. Cheap to purchase in quantity. I now use pellet tin protection foam out on the target array to hold the targets (who cares if it gets shot up?). Whether Mini-Pops (with which I have hooked many previously non-airgun shooters), once you knock the head off the target, you have to then cut the stick down before you can move onto your next full target.
Here was part of the target array at today's St Patty's Day shoot in my back yard:
View attachment 198759 We are limited in my back yard to 25 yards for this type of target (can shoot to 52 yards, but only paper at that distance), so these have gotten a little too large. Out at the Cowboy range we can set these up at 40 yards, or out to 60+ yards if the creek isn't running. Some of these targets (like the coffee stir sticks and sandwich picks) are more challenging when we turn them side-on.
So our next step has been dressmaker's pins @ 25 yards. These can be a fun challenge. We first set up a simple array, thinking that not too many would be hit and need to be replaced:
View attachment 198761 But our shooters were taking them out too fast, so one of them developed the now infamous 'pin wheel' target for our group:
View attachment 198770 At the end of a shooting session with the group, I end up with this on my magnet:
View attachment 198779 And see the little silver, coiled wire place card holders in one of my target bins:
View attachment 198783 Those are great for holding playing card targets. Get them here at Amazon (where I get most of my cocktail picks too):
https://www.amazon.com/gp/product/B01N1I1JMX Paintball targets are a lot of visceral fun as well - you can make 'paintball art'. The .50 cal and .42 cal are tougher to hit at distances, but the standard .68 cals make a much bigger splat.
I try to mix it up pretty well for the shooters in our local group as I've been the one who hooked them on airguns, and I try to keep their interest up. And you can only shoot at pins for so long before your eyes get tired and you 'need' to pop a paintball or Charms Pop.
View attachment 198792