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Your search for "heffy doodle" revealed the following:

Through-Hole LED Class Set (Powered) 40 Students - Paper Circuits Level 3
Through-Hole LED Class Set (Powered) 40 Students - Paper Circuits Level 3
$ 149.99
Conductive Resistor Stickers - Value Pack (300 Stickers)
Conductive Resistor Stickers - Value Pack (300 Stickers)
$ 14.99
Budget Edition - Love to Code Classroom Bundle - 24 students
Budget Edition - Love to Code Classroom Bundle - 24 students
$ 1,375.00
Launchpad Sketchbook (2025 ed), 12-Pack - Paper Circuits LEVEL 1, Launchpad LED & Launchpad Battery
Launchpad Sketchbook (2025 ed), 12-Pack - Paper Circuits LEVEL 1, Launchpad LED & Launchpad Battery
$ 109.99
Circuit Stickers Classroom Pack (White LEDs) 30 Students
Circuit Stickers Classroom Pack (White LEDs) 30 Students
$ 125.00
Circuit Sticker Sketchbook Kit Classroom Bundle 12 Students
Circuit Sticker Sketchbook Kit Classroom Bundle 12 Students
$ 325.00
Conductive Fabric Tape Strips
Conductive Fabric Tape Strips
$ 9.99
Conductive Pressure Sensor Sheets - Conductive Plastic (Velostat/Linqstat) Regular 5 Sheet Pack
Conductive Pressure Sensor Sheets - Conductive Plastic (Velostat/Linqstat) Regular 5 Sheet Pack
$ 7.99
Prototyping LEDs
Prototyping LEDs
$ 19.00
Conductive Copper Tape Spool
Conductive Copper Tape Spool
$ 7.99
Conductive Pressure Sensor Sheets (XL Value Pack) - Conductive Plastic (Velostat/Linqstat) 5 XL Sheet Pack
Conductive Pressure Sensor Sheets (XL Value Pack) - Conductive Plastic (Velostat/Linqstat) 5 XL Sheet Pack
$ 11.99
Light Sensor Materials Kit
Light Sensor Materials Kit
$ 22.00