sorry, found this strange looking thing in the garden, might be yours.
Moederdag of Vaderdag ! Oke ! Zal ik onthouden ;-)
It really doesn't get much easier than this. Get the kids involved and watch the glow on their faces when the birds start to roost. Preparation time: 5 minutes. Child decoration time: A lot longer (ah, bliss). Durability: A full season or even two.