purple, in other photos from EU countries, I saw prices which didn't use the Euro symbol. I linked to that particular photo to show that the same model of yellow price tag is used in Italy. Some of the tags in the other photos had a comma where we use the decimal point (the comma is European usage); I'm not sure if there's a comma in the photo above. At least one photo showed the last two numbers underlined (as Americans underline the cents). I think there were others with the entire price underlined. Many years ago, my parents lived in Belgium. Prices of everything were much higher than in the U.S. Food, gas, everything in stores. (I think the same was true the last time I was in Britain.) So I'm not surprised by the price of the mum. And maybe it's a high-end store where all the prices are high just to make you think they're ultra exclusive mums.... As for the gradient coloring, ombre (shaded; variegated) yarn has been sold for many decades. I know how low-tech crafters make it, though I have no idea what the big yarn-producers do. So the gradient-dyed fiber is the easy part. Then, maybe, chunks of dyed fiber are clamped together and glued to a piece of something-or-other. Then the piece is attached to the top of the "trunk". (I'm sure there are other ways to do it.)

Black olive (Bucida buceras) would be my guess as well.

Thank you Jim and Greg. The device is labeled Nutone Scovill. The photos on line indicate that it is a transformer. Is this definitely for a doorbell? or could it also be for a bathroom or kitchen exhaust fan? At one time I had all three of these nutone devices in my house but no longer. I replaced my doorbell and exhaust fans years ago and this may be a legacy device for a doorbell that I no longer use.

It is a mantis egg sack. It is definitely not a mud dauber nest. I know what those look like and where mud daubers build them. Besides they are made of dried mud. These pouches are some sort of flexible papery stuff.