Search for Pizza, Turtle, and Mask in Cricut Design Space (the free program that comes with the Cricut Explore) and you’ll be able to find the images I used. You can see the original images on the bottom row and then the ones in yellow are how I made it look right before I cut them out.
For the Pizza I made all the layers one layer so it would cut it all out of one color.
For the Turtle I hid everything except for the shell layers. Then I made the outside rim the same layer as the rest of the shell.
For the Mask all I needed to do was resize it.
Measure the width you want them to take up on your shirt and position and size them them accordingly. Then select all and “attach” them.
Cut out using your cutting machine (for more on this step see my long How to Use Heat Transfer Vinyl article)
Peel off the negative space.
Position it on your shirt.
Iron it on.