(Iteration 1-6 are tests of different materials)

Iteration 1: 

Scaled model of a tree made out of cardboard with spray foam in the shape of a human hugging the tree.

Iteration 2:

Pink foam stacked and layered over cardboard to create a textured feel when hugging

Iteration 3: 

Different sized balloons arrayed and pinned on a cardboard sheet.

Iteration 4:

Sprayfoam sprayed into a balloon instead of air

Iteration 5:

25" Vynil bag stuffed with cotton fluff

Iteration 6:

25" Vynil bag stuffed with feathers and heat sealed on the edges

Iteration 7 (Buttons):

Laser cut wood buttons in the shape of leafs and birds 

Iteration 8:

45" long Vinyl bag stuffed with feathers and tufted with heatsealed dots where the wood buttons would go. A flap with velcro was made in the back so that we could easily access the electronics

Iteration 9 (Housing for the electronics):

A box made with clear acrylic on the top and the rest white acrylic. The back has holes cut out for the batery and switch to be outside of the model

Iteration 10:

We made an acrylic piece that attached to the ends of the vynil bag. This piece has holes cut out so that string could fit through it. This would allow for the two ends to tie around a tree, much like a corsett

Iteration 11 (Final):

The electronics went inside the housing and we put that in the vynil bag. Then we stuffed it with feathers around the the heatsealed dots. This gave it the plushy look we wanted. 

Electronics Iteration:

Buzzer sound changed to make a different bird call noise. Vibration motor added that beats with the LED and acts as a heart. The LED is green instead of red.