Two months ago, I wrote:
Just like in the 2017/2018 crowdfundings, it'll be possible to get t-shirts and stickers again. I'll also add some new swag to the mix :)
Just a quick reminder: If you want physical rewards with the current perk levels, sign up to the GitHub Sponsors campaign before the end of the year.
Somewhen after 2020 comes around the corner (and probably after my birthday on the 2nd) I'm going to adjust the perks accordingly.
-- Florian / @The-Compiler