The base of this Easter Bunny is a triamond triangular bicupola from from my blog post https://papercraftetc.blogspot.com/2020/02/a-stem-project-rubber-band-polyhedron.html
Using this as the base, I embellished it to create this pop-up bunny.
Rubber Band Easter Bunny Pop-Up
Video of the Rubber Band Easter Bunny Card in action.
Here is the PDF. I used 65 lb. cardstock and copy paper for the envelope.
Here it the .Studio file.
Glue the bunny pieces together as shown above.
Make the triamond triangular bicupola by folding the pieces as shown. Apply glue to the largest tab with a circle.
Knot a 1/8 inch rubber band in two locations so that the distance is 1.37 inches between the knots. Slide the rubber band into the hole. I used a Glue Dot to adhere the tail to the tab. I also applied a piece of tape over the rubber and Glue Dot so that the rubber band will not slip out of the hole.
Apply glue to the tabs as shown above. Close the figure and adhere the tabs to the corresponding ones.
Apply glue to the tab with the small circle. Adhere it to the corresponding tab.
Slide the rubber band into the hole. Add a Glue dot to the tail and cover it with tape.
Completed base.
Apply glue as shown to the top of the trapezoid. Adhere the bunny head and the basket. Glue the bunny feet to the bottom half of the based the tail to the back of the bunny (not shown).
Make the envelope by folding the sides and gluing the heart tab. Collapse the bunny and make sure that it fits in the envelope.
Completed envelope and rubber band bunny pop-up.