I'll add captions and comments a bit later.
> -What was with the car with the hood emblem covered and renamed?
Honda. Branding control is very strict inside Olympic venues. E.g. I had to remove stickers from bottles of water when I was working near the field of play. Cars used inside the Olympic venues must be made by VW group of companies or hide their branding. So driver of that Honda put a sticker and wrote "Audi"
))))
> -What was that long wall with what looked like champagne bottles in it?
Exhibit of "Wines of Krasnodar region" in the Olympic park. I walked near it every day but didn't have a chance to taste it
> -And by the way, life-size bunnies arm-in-arm scare me!
They are not that scaring in reality!