you can buy a snake bite kit from Walmart for like 5 bucks and it includes 2 suction things that are great for play...on nipples and the clit. (see pic below)
kitchens spoons and switches are good ideas...leather belts are fun too. you can also buy a riding crop pretty cheap at a tack supply store like Co-op or Tractor Supply...less than 10 bucks. ooh also mini-blind rods make good make shift canes...~nods~
since she will be doing this to herself, she will need to practice to be safe. so it might be a good idea to have her practice on a pillow beforehand just to make sure she doesn't hurt herself. (more than you intend for her to, that is...~winks~)