Does your Cricut export SVGs? You can use them as is. I have used some Silhouette designs with Pro edition able to save as an SVG.
The vector needs a defined color but no defined fill if you want to cut the outline of the objects.
You can also use MS Word’s native drawing tools to do simple shapes and save them as a PDF. It works great especially if you want to engrave a vector filled engrave but you can also cut them in outline if you remove the fill and define the outline path with a color.
Different colored paths get treated as different operations in the interface. But go through the first three prints. The third one about making a custom giftag will give you the info you want.