It seems all I do nowadays is work, be grumpy or read. Usually if I'm too grumpy to do anything I just sleep early, but I can't physically sleep enough for my mood these days.
Your methods will probably not work for me, but I think this might get my head working on ideas.
Besides that, I bet others will find some use for your ideas too.
Laughter yoga is stupid but it works because it's stupid.
Hold an imaginary cup in each hand and make 'wubwubwub' sound effects as you pour the imaginary water from cup to cup. Then, after five pours, drop both cups and laugh out loud.
It's so fucking stupid and it infuriates me that it will shake me out of a downward spiral if I catch it early enough.