Hanimex Hi-Energy - 80s - EU
These just have the greatest, most "80s" design of any cassette I've ever seen.
They look like a "Type 0", and they almost are, but on a top end deck, you can actually make a musical recording on them...but let's be clear, buy these for their great design and collectability, not their sonic performance.
All I do know is that these are uncommon and I'm unlikely to get any ever again.