For our Mabon celebration last night, Mason and I baked cookies in the shape of fallen leaves. We decorated them with frosting in fall/autumn colors: reds, yellows, oranges... and even some green and brown (chocolate!) We also made moon shaped cookies, of course! I made several dozen because we have a very tiny maple leaf shaped cookie cutter that made bit-sized cookies I thought would be nice for Mason to take to his kindergarten class for snack treat.
Mason has been very anxious to start his "magical training," so we also did a very small ritual that we usually do on Imbolc, but have been forgetting... which is that every year we add a bead to our life necklaces. Mason's was started at his Wiccaning, and this year he added beads for the cats. It wasn't a very harvesty thing, but as we beaded we told Mason about why we celebrate Mabon and about how the days will start getting darker until we finally reach the darkest day: Winter Solstace.
For my own harvest things, I've been baking a lot of bread to save on food costs this year. I make a single sandwich loaf every other day now. I got a really good recipe from one of our thousand of baking books that I've been slowly perfecting. The bread is perfect for sandwiches, but Shawn has also been craving some "artisan" bread, like French baggettes, which I'm going to try to make now and again as well.
At any rate, Happy Mabon!