Spend your MUE at:
Flubit – buy anything you need, paying with MUE gives a 20% rebate
Nodemasters – all kinds of hosting , for websites, VPS’s and private servers
Stampa-Stampa – Printed and decored garments and accessories
Pexpeppers – for all your natural hot sauces
SheldonStore – for jewelery, phones computers and more from Germany
Cryptograbber – Arcade claw machines
If you want to accept monetary unit with your business or webshop, the most easy way is to use Coinpayments. They have a lot of tools and plugins for any type of website.