ficinabox, a multifandom exchange where you have the option to split your 10k into as many works as you want (with other opt in mediums available), has
opened sign-ups until August 21st. Schedule and rules
this way.
remixrevival is a gift exchange where you sign up with the understanding that you will create a remixed work for someone else and in return, someone will be assigned to create a remix for you. They've
opened sign-ups until August 23rd, 11:59 MST (Mountain Standard Time). More details can be found
here.
justlikebudapestauction is a Black widow fandom auction benefiting Hungarian lgbtq- or lgbtq-friendly organizations. Sign-ups are closed but if you are interested in bidding on a creator's works, preview week starts on August 16th.