For the Fairytopia area, I made around 50 large tissue paper flowers (cheap and easy to make) in different shades of pink, white, purple and yellow. I taped them to the ceiling, and strung bright green crepe paper throughout to look like leaves and vines, and taped some butterflies around to look like a beatiful garden. I had ordered a Fairytopia table centerpiece and Fairytopia tablecloths, and had extended our dining room table with card tables and extra chairs so all of the kids (18) could fit in the same room. Next, I had picked up a bunch of spring colored flowers in bunches on clearance at a craft store (90% off). I snipped all of the flowers off of the bunches so I had a ton of free flowers. I spread some of them around on the table. Next, at each place setting, I had a pink plate, Fairytopia napkin, fairy wings (ebay) and a chocolate wand (on clearance after a holiday at a cooking store). The room looked so festive and pretty! For the Mermaidia area (the pool), I had picked up some floating silk lilly pads with flowers at a silk flower store (also saw them on ebay, but less expensive here). We then had a bunch of those battery-operated swimming fish, so I put those in the pool. With the fish swimming around, and the flowering lilly pads floating, it looked like a beautiful live little lake. I also hung different shades of blue balloons up along our pool fence. I also put up our inflatable water slide for the kids to go on. As a side note, I spent a long time calling around until a found a life guard who could monitor the pool the entire party - best money I spent! I wasn't sure how many parents would drop their kids off and how many would stay, and I knew my husband and I would be in and out so this was a great investment.