Haiku is an amazing project.
I just wished they had like a shop to purchase t-shirts, stickers, plushies and whatnot like the FSF.
I'd buy in an instant, and it probably would be great for their donation goals.
I just got a sticker, but I think you guys could improve on the work, I see potential with the logo and variants, and a mascot would be very cool.
Just saying, well done merchandising sells well. Good luck!