This site has a collection of several awesome Thomas or train themed parties. I think some of these ideas are ones I could use for Eli's 2nd :) From:The Blog Formerly Known As Come Together Cards, now Courtney Warren Creative: Train Birthday Party: Best of the Web
A Two-Two Train Party is a Marvelous Plan for Your Two Year Old. The second birthday party is becoming just as important to moms as the first. When planning the birthday theme for your little one, a two-two train party will be the perfect idea. The wall decals, napkins, plate and other accessories will make this a great party.