I 3D printed a knife… but how dangerous is it really? 🔪🤔 Can it actually cut, or is it just a cool-looking toy? Watch till the end to see the results—would you trust a 3D-printed knife? Let me know ...

[kida] has a highly innovative set of 3D-printable, musical fidget toys that play classic video game tunes. Of course there’s the classic Super Mario ditty, but there’s loads more. How they work is ...