The glowing flower is ready. The LEDs used in the patches were 'rainbow LEDs', which blink in different colors when powered up. / CC BY Kati Hyyppä & Sylvia Kautz
The LED circuit in more detail. The LED legs were pushed through the felt and bent for sewing. Conductive yarn connections were then sewn from the legs to the 3V button cell battery holder (minus is marked with black and plus with red in the holder). The plus connection was interrupted with a small gap and an ON/OFF switch was made using a safety needle, which extended over the gap, closing the connection. A bigger safety needle was used for connecting the patch to clothing or a bag (sewn with regular yarn). / CC BY Kati Hyyppä & Sylvia Kautz
Small patches and parts could also be made as long as there was enough space for the LED connections and the battery holder. / CC BY Kati Hyyppä & Sylvia Kautz
Here is an elaborate alien patch, which includes a dwarf planet, sun, rocket and a crystal planet. With detailed patches such as this one, glue was often used for attaching the smaller parts instead of sewing. / CC BY Kati Hyyppä & Sylvia Kautz
A minimal design with a magic mountain and moon, which is made of reflective fabric. / CC BY Kati Hyyppä & Sylvia Kautz
Full action around the workshop table. / CC BY Kati Hyyppä & Sylvia Kautz
Another space-themed patch with a green rocket. / CC BY Kati Hyyppä & Sylvia Kautz
Some participants skipped the glitter completely and went for a more plain design. Here is a lovely little lighthouse in progress. / CC BY Kati Hyyppä & Sylvia Kautz
Big smile. / CC BY Kati Hyyppä & Sylvia Kautz
Two basketballs and giant glitter eyes. / CC BY Kati Hyyppä & Sylvia Kautz
The message of this patch is clear. / CC BY Kati Hyyppä & Sylvia Kautz
As the workshops were on the week of Halloween, pumpkins scored also high on the most popular themes list. / CC BY Kati Hyyppä & Sylvia Kautz
Light in the window of a magical little house. / CC BY Kati Hyyppä & Sylvia Kautz
Sylvia helping out with sewing. Sometimes the thick felt was a bit tricky to manage. / CC BY Kati Hyyppä & Sylvia Kautz
This was supposed to be a half-moon shaped patch but became in the end a blinking bib for Nelly the baby. / CC BY Kati Hyyppä & Sylvia Kautz
Pacman seems to be still a top hit. Go pacman! / CC BY Kati Hyyppä & Sylvia Kautz
Pacman seems to be still a top hit. Go pacman! / CC BY Kati Hyyppä & Sylvia Kautz
Minecraft was also amongst the loved themes. Here an LED lights up in a creeper's mouth. / CC BY Kati Hyyppä & Sylvia Kautz
This fancy mobile phone pouch was also inspired by Minecraft. While we used mostly single rainbow LEDs in the patches, it was also possible to use two if the design demanded this. / CC BY Kati Hyyppä & Sylvia Kautz
This tablet pouch lights up when the tablet is placed into it. The secret of this trick is a piece of copper tape on the tablet surface, which closes the LED circuit on the pouch. / CC BY Kati Hyyppä & Sylvia Kautz
Some participants went on working even during a break, even if the lights were turned off. These guys used their iPhones for additional lighting. / CC BY Kati Hyyppä & Sylvia Kautz
And here are the results of working in the darkness. Tech-savvy felt art. / CC BY Kati Hyyppä & Sylvia Kautz
Some participants made also blinking wristbands where a metal push button was used as the ON/OFF switch. / CC BY Kati Hyyppä & Sylvia Kautz
This James Bond style wristband matched a high-speed boat made in another workshop. / CC BY Kati Hyyppä & Sylvia Kautz
Another very shiny wristband. / CC BY Kati Hyyppä & Sylvia Kautz
Sometimes there was time even for a second project when the first one was ready. Here a green monster follows a pink wristband. / CC BY Kati Hyyppä & Sylvia Kautz
Multimeter was also explored once the patch was ready. Here it is being experimented how running fast affects voltage. / CC BY Kati Hyyppä & Sylvia Kautz
Burger that lights up when eaten due to a clever switch design. Guten Appetit! / CC BY Kati Hyyppä & Sylvia Kautz
One participant finished an extra project at home after the workshop, which was a lovely little room with a table lamp. The lamp goes on with a press-switch on the floor. / CC BY Kati Hyyppä & Sylvia Kautz
On the last day of the workshop week all the blink patches were shown to parents and friends. / CC BY Kati Hyyppä & Sylvia Kautz
