I have the words cut out from the front of the card and used scraps to make the rainbow on the backside of the front layer. Then I used foam tape to pop it out from the A2 card base.
The original file in Design Space had each letter being cut out individually and then pieced together on the card front.
This entire card was made from scraps in my craftroom, even the card base was leftover from another project. It was fairly quick using the slice feature. And I just trimmed the rainbow coloured scraps with a pair of scissors then used some Tombow permanent adhesive to stick it down.
Check out the Cricut Explore & Bundles at Cricut.com
They also have the wireless adapter and other accessories available online.
Free shipping over $35 with code: MARCHSHIP