Quantity   Component name
1 × Particle Photon Or any similar arduino-esque microcontroller
2 × USB to micro-USB cable For programming, and then later for other things
1 × Switch For turning the power on and off
1 × USB Battery Just for chargin'
5 × Microservo (3.0V-7.2V) Scratchy scratchy
1 × 3D-Printed Horrifying Starfish Mold It's pretty horrifying.
1 × Smooth-On Silicone Any pourable kind, but I suggest a softer, opaque one
1 × Scrap Fabric Strips To put in the silicone, as fascia
1 × Fluffy outer coating I knit mine and formed it over the finished body, but you could sew it just as easily.
35 × 1/2" Velcro squares or dots To help attach the skin to the base
5 × IR Temperature Sensor (MLX90614) So he can see you, like the predator
24 × 3D-Printed Rib Struts (flexible PLA) Depending on the size of your starfish cat, print more or fewer!
1 × Coated wire, ~12 gauge To hold the struts in place
1 × 3D-Printed Ear Cartilage (flexible PLA) So adorbs.
1 × 3D-Printed Arms/Microservo holders Don't want him to lose his muscles!
5 × 3D-Printed Claws Wheeeeee
1 × Pneumatic Motor I broke open another object to get mine
10 × Right-Angle headers (Row of 3)
2 × Female Headers, Row of 12
1 × Wires Not one wire. Like a billion. So many wires.
1 × Adafruit SoundFX Board meow meow meow
1 × Speaker MEOW MEOW MEOW
1 × Arduino (for reprogramming temperature sensors) You only use this for like a second O___O