Thanks for the welcome, everyone!
havanaholly: Yes, I did make Joe's sweater, out of a pair of socks (I certainly did not knit that myself!) They're the perfect size for him--use one for the body of the sweater, and the other for the two sleeves.
MikeUK: Yes, it's from layers of mat board. I built it up to make the different thicknesses, e.g., the painted splats are two layers thick, the rails are four, and the posts/legs are six. I left tenons in the thinner layers (like the rails) and cut mortises out of the inner layers of the thicker pieces (like the legs) before I glued all the layers together. I also covered up the layered edges with a bit of card to smooth it out. The bit about Joe finding it antiquing is just a bit of fun as if things were seen from Joe's point of view.
I had to look up the IGMA forum--my goodness, that's quite a compliment! Thank you.
eta: D'oh, I meant 'cabriole' legs, not 'cabriolet'--that's a convertible car!