Marek3D

16/05/2026

Still telling people “just search my Instagram”?
Yeah… this is easier 👀

These custom NFC Instagram keychains let people open your profile instantly with a tap of their phone. No typing usernames. No QR codes. No searching around.

Just tap → follow.

Each one is custom made with your handle (or logo), lightweight enough to carry every day, and programmed before it ships so it’s ready to use right away.

Perfect for creators, small businesses, barbers, detailers, tattoo artists, gym owners. Honestly anyone trying to grow their social media in the real world.

Simple idea, but super useful.

15/05/2026

Getting paid just got way easier 💸

No cash? No problem.
No awkward “what’s your Venmo?” conversations.
No QR codes to scan.

Just tap your phone… and you’re paid.

I’ve been working on these custom **Tap-to-Pay Venmo signs** and they’re perfect for anyone taking payments or tips in person. Each one is programmed to your Venmo and ready to go right out of the box.

✔️ Instant tap-to-pay
✔️ Built-in magnets (stick it anywhere)
✔️ Clean, custom design
✔️ Works with most smartphones

Perfect for barbers, tattoo artists, detailers, small businesses, and anyone who wants to make getting paid easier.

If you’re still relying on cash or typing out your username every time… it’s time for an upgrade.

Marek3D.com to get yours today!

30/04/2026

Sent these out to two Lego fans in Virginia! ❤️ 🎂 🎉

21/04/2026

This is happening in California and could happen anywhere else too. We can’t have law makers who don’t understand technology making laws about technology!

California AB 2047 is the strictest regulation on additive manufacturing we've seen yet, and it's built on a foundation of technical impossibilities and manu...

17/04/2026

New product! Share your IG on the go with this custom keychain!

16/04/2026

Here’s a couple things I’m working on! Hit me up if you’re interested in getting your own made. Tap to load your socials automatically, tap to pay! Keychains are next!

07/04/2026

Printer going brrrr

06/04/2026

Working on something new. Embedded RFID tag to share your IG handle! Great for car shows, businesses, etc!

03/04/2026

Printers buzzing getting orders done ✅

30/06/2023

at the beach on vacay!