So there I was, walking through the park when I noticed a couple of these things in the children's play area. I have no idea what they are. Essentially, they're a funnel on a stick a metre and a bit high (four foot in old money). Inside the funnel is five holes; I can't work out why or where they go. There are two of these; one at each end of the park but don't face each other: they're oriented 30° to each other.