I ordered some very cute invites from Pink Pickle Studios on etsy.com. One of the few sellers who has personalized gymnastics invites but I think they turned out really cute :)
I always get these type of invites printed at overnightprints.com. You kind of have to do this in advance to take advantage of the cheapest shipping option but because they run awesome promotions you can usually get 50 cardstock invites for around $12-$15 including shipping and envelopes! I know, wacky, huh?
Pink Pickle Studios also made a sheet of printable party cirlces which I turned into cupcake toppers. These are so easy to do. You print the page of graphics on cardstock, punch out using a 2" scallop punch, then stick a wooden skewer between 2 circles and glue.
I'm kinda obsessed with cupcake toppers? I made them last year for John's 3rd birthday and I had to do it again this year.
I thought I would go all Martha, baking and icing my own cupcakes but in the end I bought them all baked and iced from Kroger. Then I did a little Photoshop action on the party circles and used the same circles to make thank you labels for the party favors. I know I probably should have purchased thank you circles but I went into a panic at the 11th hour when I decided I needed a cute label for the favors, like, yesterday.