I don't know if you can buy the OEM stickers alone. The ones on my third gen are original and show their age; I'd love to replace them.
Alternatively, you can have some of our Maximaclub.org 4DSC stickers made. Contact our Versa Moderator CodeRed, I think he'll still do the Max stickers.See this thread:
zerothread/343546
Just for the sake of discussion, I prefer the original 4DSC logo to the new 7th gen version.