Jenn McGuire recently did a post featuring vellum as a card base in all different ways - I was enchanted! So as soon as I could, I gathered together my own supplies, a good many of which are retired, and did a CASE of one of her cards.
Jennifer had a great tutorial video which I followed pretty closely to construct my card. Here's another card, using a different embossing folder. I CASEd my own card from 2016.