In the days of old - back in the 1900s - like 1976 or so - we used to have broadhead tournaments !
We took a big piece of cardboard; cut it out in the shape of a deer or bear or whatever.. and painted it up to look almost 'real'. Then we used a pencil to draw lines indicating where the scoring was.
After a group shot; they would walk forward and look at the cut the broadhead made. If it cut a line- it counted.
Most of us were shooting different number blades; so whose shot was whose- was obvious.
After scoring- we would tape up the back of the target- so little evidence of an arrow hitting showed on the face of the cardboard.
The cardboard silhouette was strung up between two wood posts; and a pile of sand behind the target worked to stop the arrows.
The only problem we had was when two people shot the same kind of broadhead. To help identify the person that shot - we would take lipstick and put it on the edge of the broadhead. If everyone had a different color lipstick - identifying who hit the 'ten ring' was easy.
I like the scoring system above.
Several marital conflicts resulted from the wife finding lipstick laying around; or missing lipstick... but it was way cheaper than 3D targets