I was thinking to try and save time and hold attention that maybe my SO and I could set up an "assembly line" type deal. We would have a bunch of batteries, some scissors, and anything else we might need ready to go. I sit with my son and "help" him open presents. Basically, I'll be unwrapping with him in my lap (or sitting beside him) so he can grab at the paper and help pull as well so it doesn't seem like I'm just completely bypassing him unwrapping, I'm just expediting the process. Then the toy gets immediately handed off to my SO, who opens it, gets it ready, throws batteries in it, and then gives it back to DS to play with. Rinse, wash, repeat.
I feel like DS would stay entertained with the toys being put around him, but he also loves the sound of paper crinkling, so I think he'll still "help" me unwrap the presents. But this way, instead of it just being a show of watching him play with wrapping paper and most likely be completely uninterested in the toy/box, DS can get right to playing with his presents and give people the "reactions" they're looking for.
So what do you think? Tacky? Am I not thinking of something that makes this unrealistic? Have you done something similar? Throw it at me. I just thought of this like ten minutes ago, so it's not like I'm invested in it if it's a bad idea.