S.K.
I was just in Home Depot yesterday & they have wall clings. Both in Disney Princess & Pirates of the Caribbean! You may have to ask where they are. I work in Sun City & came across them when I was looking for Blinds, I would not have found them otherwise. I also had one year when I was broke and could not find much for my son's party. So I took two hangers, got some wire that was decorated with confetti, some extra invitations and made mobils out of it. They were a hit! Charcoal mustashes are great fun. Red fabric would be great for sashes on head & waist.
If you don't have the $$ to buy a cake (Publix or Costco are my recomendations) just make 2 mixes, make them in rectangular pans, or square pans & cut them to make a treasure chest. Don't worry about the top of the chest, just pile chocolate coins and those beads we all have from the festivals on and around it - they will love it. Claires always has tatoos, but not always for boys, you may have to go to Party City for them - but only after trying -
My best party secret - Toys R Us at Ellington Mall. They always have treat bag stuff, stuff that the adults get a kick out of because it is stuff we had when we were growing up.
Most important - HAVE FUN!!