Octopole in 12 gliders:
x = 55, y = 33, rule = B3/S23
Decapole in 14 gliders:
x = 73, y = 33, rule = B3/S23
I get the feeling that there are many cheap syntheses of barberpoles lurking in symmetric soups...
EDIT: Whoops, I meant to post this in soup search results. A moderator could move it (and mniemiec's reply), but I think it's fine.EDIT
by dvgrn: Well, I'd never tried doing that before, so probably I needed a little practice. It's a crazy awkward two-step process (split to new topic, then merge)... so thanks for the opportunity, and I don't need any more practice now please.