For one of my recent baby shower invitation commissions, I was asked to create a design incorporating children's building blocks. The mother-to-be is an engineer so my client wanted something with a "construction" theme. I think this vector artwork will come in handy for other projects and I want to share the file with you too. You'll need Illustrator CS4 or above to work with this file. I used the 3D "Extrude and Bevel" effect to create the shading and angles of the blocks. It's easy to change the sizes or the colors. Click here to download the file. Enjoy!