Thomas Train Party 3 year old  I found a great park in Long Beach (El Dorado Regional Park) that has a miniature railroad. We are  renting a "caboose corner" for $250, which includes our own grassy area all day with 5 picnic tables, a jumper from 10:30 a.m. - 4:00 p.m., and 25 tickets for the railroad. We are going to serve  basic picnic fare on Thomas themed plates (Oriental Trading). For activities, we are going to decorate train cookies (Land O Lakes has a special offer for a train cookie cutter!), use the jumper of  course, hit a train pinata (Oriental Trading), have a potato sack race and color on Thomas coloring pages. When the guests arrive, the children will receive engineer hats/scarves (Oriental Trading).  The cake will be a Thomas cake of course. When the party is over, the children will receive goody bags with a train whistle, fruit snacks, cereal bars and Thomas stickers.