Video? Embukai videos, the ones showing many participants and spectators gets more interest. Or maybe... Seagal's "the Path beyond thought"
I used Yoshinkan Aikido's 32nd birthday video most often because there's more variated embukais there like Kids, Females, Tanto-dori, Katas and general demonstration.
a suggestion for the stand: Wind is bad, Sun is bad and extra Chairs are gooood...
As for donations, we started without renting the space. So we didn't think it would be necessary to ask for it.
The club hired my sensei for a montlhy fixed fee, the space and mats are provided. Students pays their montly fee directly to the club.
This method works pretty well so far, although maintaining good relation with the management is necessary as well.
I think new yudanshas can opt for this method, as it didn't require too much starting capital.