Author: jaywang1027

ThinkCAD & Arduino video link:

https://www.tinkercad.com/things/c0ao1gyHsN3-spectacular-crift

https://drive.google.com/drive/folders/1cQIgQ42XmMttT54Uchr8u547O072Qw93?usp=share_link

Matrial:

headband, foam, and hot glue for cat ear
white fabric and see-through fabric for the main body part
black fabric for the tail part
black fabric and white thread for fish bone
neopixel, gemma, and power bank for light part

Next:

Fix the cat ears in place, get a model to help me mark and cut the eye holes, trim off the extra hem, and attach the tail.
Install the light section.
Use an embroidery machine to stitch the design onto the black fabric, sew it up, and then fill it with stuffing.

Process:

A white ghost costume with cat ears and a tail. The face and body are covered—purely for fun as a Halloween costume. Kind of like a “corner little ghost” vibe.

I will sew LED strips onto the hem of the ghost costume and program the LED colors and flashing frequency. I want it to alternate between blue and white, then gradually shift into red.

Materials:

• White fabric.
• For the eyes, I’ll use translucent fabric, find some leftover red fabric that I might paint black (or possibly keep red, which could also look nice).
• Black fabric for the tail and a fish-bone plush.
• A headband or hat to attach the cat ears.
• LED strips, batteries, and a microcontroller board

To-do list:

• Solder the LED strip and set up the lighting effects.
• Cut the foam board into ear shapes and attach them to the headband or hat. Then, assemble the pieces with the white fabric.
• Cut and sew the eye area.
• Assemble the tail and LED strip.
• Embroider a fishbone pattern on the black fabric and sew the fishbone plush.
  

Circuit diagram

https://drive.google.com/drive/folders/1cQIgQ42XmMttT54Uchr8u547O072Qw93?usp=share_link

Progress photos

Arduino circuit video link:
https://drive.google.com/drive/folders/1cQIgQ42XmMttT54Uchr8u547O072Qw93?usp=share_link

Halloween costume ideas:

material:

White fabric (for the main part)

Black translucent fabric (for eye part)

Foam blocks (to support the ears’ shape)

Black plush fabric (fish or black cat, and tail)

White embroidery thread

Arduino-controlled LED light set

photos of prototype

image of pattern

circuit diagram(no more than 8-10 LEDs)

Night Light’s story and target user

When I was a child, I was terrified of mirrors. Even now, I still feel uncomfortable around them. Back then, I didn’t fully understand the importance of brushing my teeth, and I often used my fear of mirrors as an excuse to avoid it. Before I started changing my baby teeth, one of them had developed into a very serious cavity. My first visit to the dentist left me with a lasting, frightening memory.
Now, my relationship with dental care is completely different. I go for regular cleanings, brush and floss daily, and I hardly have dental problems anymore. That change made me realize how powerful early habits can be. I designed a tooth-shaped night light to reflect that journey. The idea is that brushing your teeth often happens right before bed, when the room starts to get dim. A soft night light that doubles as a comforting plush toy turns this daily routine into something playful and safe.

I hope that through this design, children can begin to see dental care in a positive light. Instead of fear or avoidance, they can associate teeth with warmth, comfort, and protection.
My target users are children, dental clinics, and dental schools—places where creating a more reassuring atmosphere around oral health can make a big difference.

description of the parts and materials you plan to use

• Soft fabric (minky fabric, fleece) for main part
• Translucent fabric or soft plastic film for light part
• Sewing thread
• Stuffing cotton
• Acrylic eyes
• Small light bulb and battery pack

images of three early brainstorm sketches