I see that Lidl will have some of these on offer from Thursday, although there are cheaper on Ebay. I had never heard of them, but after looking on Youtube I wondered whether some of my teenage GCs would like to have them as Christmas presents as well as the usual money.
Have any of you seen or tried one of these pens? It works a bit like a glue gun. I would like to get an idea of whether I would be wasting my money.