Gorgeous and metallic stickers perhaps
..or Victorian-style with luscious and rich fall tones.
Not sure if you guys have a suitable tarot other than the Truthseekers--but there are metallic star stickers that I used up that seem to have beautiful sheens similar to gel pens--you might want to hole punch or cut them up for random metallic sheen to dress up your gilded experiments.
You are all going to laugh, but in my quest to enrich an Easternized tarot that goes with my Victorian Rubiyat poetry reprints, I am hoping to have time soon...this thread is an inspiration! I thought of gilding my ex library $1.00 book find and my silly adornment experiment with an unnamed modern tarot bought in a bargain bin with similar art styles (nothing rare-I haven't finished my adorning, so will have a guess post if the gilding works.)
I may continue more careful gilt experiments like the wonderful ones here by these artists on a BOTA deck that has good cardboard strong enough for sticker or small collage..