This website has a TON of cheap decorations, wedding stuff, crafts, etc. Catering you dessert section in all blue sweets is a great way to include your wedding theme colour of blue into your food choices!
Chalkboards are extremely trendy right now! To give your guests something sweet to read, display a relationship timeline chalkboard. If you want to make your own chalkboard, you can purchase chalkboard paint at a majority of craft stores.