1 - Itchy runs up to all the targets really fast and destroys them by punching them
2 - Doze shoots the targets with a sawn of shotgun
3 - trace simply grabs a katana and holds in in front of the target production line waving it around and retroactively destroying the targets as they where being produced
4 - clover throws a rubber ball that, as luck would have it, bounces around in such a way as to destroy all the targets
5 - fin just shoots the targets with a regular pistol
6 - die uses his voodo doll to travel between universes and find one where a nukelear war has broken out,steals a nuke and returns to this universe before detonating the nuke thus blowing up all the targetss
7 - crowbar just hits the targets with his crowbar
8 - snowman stabs herself to death using her lance thus destroying the entire universe including the targets, that was an alternate timeline but it is broadcasted to this universe through a crystal ball and proves she can do that and counts as her doing so as to not erase the universe
9 - stitch puts all the targets backup hats on some effigies and then throws them into the fire place thus burning the real targets
10 - sawbuck headbutts the targets thus breaking them but also being hurt an thereby randomly jumping through time
11 - matchsticks lights a fire thus allowing versions of him from different points in time to emerge from said fire each of them then going of to smash the targets to deat with their fire extinguisher
12 - eggs' egg-timer rings as versions of him from the future show up and simply shoot the targets
13 - biscuits fires a literal canon that he is holding in his hand at each target
14 - quarters shoots all the targets with his gateling gun
15 - cans punches each and every target into literally next week, it turns out that next week they are being incinerated
lord english is already standing next to al the targets so he just punches them
doctor scratch uses his first guardian powers to warp the targets into the sun
each of them is a different person so count each attempt sepparetly