If a credit is missing from here it's either an oversight or something that I didn't know who made it, please let me know if anything needs to be added

Banners:
I Love portal & Linux 4eva: jack-dawlia.neocities.org

Stamps:
Deltarune: https://echoesoftheend.neocities.org/

Songs music player:
TF2 Upgrade Station high quality https://www.youtube.com/watch?v=bcJaZRlqzOQ 
The Binding of isaac repentance - River of despair
Battle block theater - menu theme
Deltarune - Green room
Rogue bird - Shop theme (by Netlargo)
Mewgenics - So high