Finally completed my Big Shot mod. The Big Shot guy snapped off and while he's still intact, it's not a great long-term solution to re-attach him. Plus, the Big Shot target itself is of no relevance to most people in gameplay. So I decided to make it relevant.
First, I bought a new armature (the metal arm the Big Shot normally attaches to). Marco sells this for some reason even though it's only used in this game. They don't sell the Big Shot figure of course. Strange. Anyway, next I bought a red boxing glove on Amazon for like $5. It fits right over the armature and I used a black zip tie to make sure it stays (if you don't it will fly off after a few games).
Next is finding and printing out the right photo of DT. It's important that the head be taller than the MixMaster so when the glove hits it, it snaps back and you laugh accordingly. I used foam double sided tape to easily attach him to the Mixer. If you don't use foam-tape, there's no padding and it may come off after a few hits. He doesn't budge with the foam tape.
And yeah I realize there is one in every crowd: "How dare you desecrate Dear Leader!!" Dude, you can use a photo of whoever you want. If you're a DT fan, then put a photo of Obama, Kaepernick, AOC, or whoever your lefty Villain-of-the-Week is. It doesn't matter. The point is now you can be motivated to hit the Big Shot.