Could also print these off on sticker paper and put them on goodie bags -- or use them for the cupcake toppers/boxes.
INSTANT DOWNLOAD: Lego Party Pack, Lego Birthday Party Decoration, Boys Party, Lego Invitations, Banner, Labels, Toppers - Digital files on Etsy, $25.00
Free Lego printables
I Sew, Do You: Lego Memory Game Cards
Mondocherry: LEGO games ideas..."Other games included sucking up pieces of Lego on the end of a straw and into a container ( this one proved quite challenging! ), Lego man and spoon race, duplo throw into buckets, pin the Lego symbol onto the Lego man, pass the parcel and the four corners game"