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?

I think it's sweet and fun to do a theme party for your daughter. While she may not remember the event, in future when she looks back at the photographs, you could explain to her why that theme was chosen. It would also be fun for the other parents and children attending. Not to mention, having a theme can make planning more focused (e.g., cake and decorations). Have fun!