My daughter is turning 2 soon and I'm thinking of throwing her an egg-surprise party as she is very into it recently. Is it silly to do a theme party for her at this age where I think she won't be able to remember anything?

Memories are not just personal but you can have plenty of photos to remind her and yourself of this awesome party you have. So you should definitely plan it well and make sure you photograph and/or video every part of it. Wishing you a fun and memorable party!!!