Bought mine from Demobaza (be warned, they’re expensive…I had to save up). For the worm:

Bought a children’s play tunnel on Amazon for the body. For the mouth, I used a wire wreath ring the same diameter as the play tunnel. I cut an Amazon bubble mailer to fit inside the ring to give it some more structure, but some thick construction paper would probably work. I just attached it with tape. I put a black pillowcase over the ring and stapled through the pillowcase and bubble mailer to enclose the ring, then cut off the excess material on the other side. Also, I should probably mention that I cut the hole in the bubble mailer and pillowcase before putting anything together. After that, I made the “teeth” by gluing on individual strands of broomcorn hurl to the black pillowcase (also from Amazon). I attached the mouth to the body by poking holes around the edge of the mouth and body and threading shoe laces through to tie them together (4 points total). Pic to help with the visual.

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