Glide Tossing
I didn't see anything about glide tossing in the front page, but I think it might be worth looking in to. I was messing around in Training Mode with Pit to get the glide tossing down with him, and I was using the Banana Peel. Since Diddy Kong uses Banana Peels, I thought it was interesting what could be done with these. Let's say you have a Banana Peel in your hand. Depending on how far you are, you can glide toss Diddy Kong's Banana Peel and then grab him after. If he gets hit, you can grab, or you can do an f-smash. Grabbing might be safer, since you can grab your opponent if he or she shields. Other smashes are possible, but probably not as good. What is more, if you do an f-smash, you can use it in the opposite direction, so even if you do end up behind Diddy Kong, you'll still be able to hit him.