These were super easy thank you notes to whip up. I had them all printed and ready to go before we even had the party. I used bricks to spell out the words "Thank You", took a picture of it with my camera and then printed out the photos as 3x5 prints. I had some solid colored 4x6 cards with envelopes from Target which I adhered the pictures to. Viola! An easy and cute thank you note to go with our Lego theme.