There are no stickers / yard signs for any candidates in Austria.
Only for parties. And those are all taken down in the 2 weeks after an election.
You can only find old election posters somewhere on the Internet ...
Is that by law or just a custom?
The American tradition of political yard-signs is something that simply does not exist in Austrian (political) culture.
If you'd put a yard sign of Werner Faymann (LOL) in your garden, you'd immediately become the neighbourhood's laughingstock.
I mean WTF ? A yard-sign of WERNER FAYMANN ?