For dry-erasable cards I plastify a page with 4 lines of "O O Free Invokes, 0 Costs 1 Fate Point to Invoke" and cut them into page-quarter strips.
For Fate Points, I use vase pebbles. Light, colourful, nigh indestructible.
https://www.amazon.com/FuturePlusX-Marbles-Premium-Aquarium-Pebbles/dp/B07DPMBGL2/ref=sr_1_7?keywords=vase+pebbles&qid=1571690489&sr=8-7