Believe it or not, I've seen one of those at the Decathlon shop in Guangzhou, China. I bought loads of kit there, because the Quechua brand stuff is all good, cheap and they had my size! The thing that put me off the tarp was the weight, because I wanted to hike with it. The ultralight two man tent I got from there weighs 2kg, whilst the tarp is big and hefty at 1.9kg. Looked decent quality, so I was sorely tempted, and it was almost the same price, so I'm sure it'll be the same one.
'hope that's some use.