Most folks know how to ‘block’, but this is a nice summary of the 3 methods. I tend to wet or spray block and I definitely have ‘rust proof’ T-Shaped pins!! The one item I have not blocked yet are doilies - I plan on doing a fairly ornate one for a fair project, so I need to bite the bullet & practice on some doilies I’ve already made. The fair doily also needs to be mounted on some sort of board (fabric-covered foam board or heavy cardboard is what I’ve seen the most) .... that’s going to be “fun” to figure out as well.
3 Ways to Block your Crochet Projects
https://www.cosyrosieuk.co.uk/3-ways-to-block-your-crochet-projects