Sorry to keep sending suggestions during a very busy time! ;-)
I noticed that one of the Trisquel list members made a suggestion about crowdfunding rewards:
https://trisquel.info/en/forum/future-libre-computing-crowd-funding-campaign... starts-now#comment-99721
Although I intend to support this campaign because I actually want the products myself, there will be people who just want to support it in its own right. I had a conversation yesterday about this, in fact, after having seen another Crowd Supply campaign add some extra rewards:
https://www.crowdsupply.com/knivd/ello-2m/updates/2233
(That's an interesting campaign all by itself, by the way.)
Giving people the chance to say that they like the idea, to give more than $5 - yes I see that you can give multiples of $5 - and to maybe get more than a "thank you" but less than any of the main rewards, might broaden the base of supporters.
Random merchandise might not be completely compatible with the ecological objectives of the campaign, at least if not done right. Then again, people do need to wear clothes, drink beverages out of containers, and so on. ;-)
Paul