Melody created this 3D fishbowl last September for the Cricut Craft Room Blog challenge. She used the fish bowl from the Animal Kingdom and George and Basic Shapes, if you don't have George you could replace with Craft Room Basics cartridge that is free for everyone. Melody will help you with that if you ask.
Here is the cutfile. You have to download the cutfile from Box.com and then save to your computer and then open in CCR. You can not see the file in any other program. Here is the link to directions on downloading and uploading to CCR.
Here is the Original Blog Post. There are more pictures and a video.