While you may not get levels in real life, you can get Discord emotes. :MrshaHype:

Art by Bobo Plushie (Twitter).
 
• Size: 5.83″×8.27″
• Film type: MPI 3000 Gloss HOP (EU), Promotional Monomeric PVC (US)
• 0.12″ (0.3 cm) white sticker border
• Glossy finish
• Fast and easy application
• 2–3 year durability
• Indoor use only

Don't forget to clean the surface before applying the stickers.