Here's what we've done so far:
1st: Christmas jellies
Our silicon gingerbread man mould didn't want to let go of this jelly, but that was a bonus as far as Bob was concerned, as that just meant there was more jelly to lick off the mould :-) He decorated jelly man using various cake decorations, including mini snowballs
2nd: Foam chains
Bob made one of these last year too, and got bored just as it was as long as he was tall, so I thought it would be fun to do the same this year too. Last year he couldn't make the links on his own, and didn't want to decorate them, but this year he was able to do it all himself, and added stickers to every link.
What we used: Craft Planet foam chain kit, Craft Planet Christmas stickers
3rd: Lolly stick reindeer
last year's lolly stick snowflakes were so popular I thought it would be fun to make, and we weren't disappointed. Bob was able to do this pretty much on his own, with me just holing things for him. We stuck the sticks together with silicon glue dots, so we wouldn't have to wait for glue to dry.
What we used: Lolly sticks, Craft Planet pom-poms & googly eyes, holographic foil snowflakes, Stick It glue dots.
5th: Trimming the tree