I do offer something very similar to this idea when it's requested by my wedding couples. Generally, I just place a hope chest in the reception area, and guests can drop off their gifts inside. At the end of the evening, the bride and groom typically gather up their gifts from the chest and throw them in a to-go sack.
I don't know where they're at with home updates, so I can't say that's a possibility at this point in time, but it's a nice idea.
I'm usually pretty flexible about adding small details to weddings for my couples. I always want the bride and groom to feel like everything is as close to perfect as we can get it on their wedding day.
~Galene