I've had these for a little bit and I've noticed that they catch the light and throw it around really well, getting the attention of onlookers and drawing them in. Talking about something "mysterious" like bitcoin also helps add an air of 'known mystery' to my patter. I've done a few magic-swaps for the mini version and it works really well.
The "stickler for detail" within me has noticed that the font on the smaller version is thinner than this larger version and also the silver and gold ones are losing small shavings of metallic coating onto my hands but my audience hasn't noticed any of that so that's fine but still, it's definitely gonna be an issue in the future.
For the price though I'd say it's great value!!
