Ouch! I have pricked my finger not on a spindle, but on the spiny tip of a sepal. The dry, shrivelled flower obviously does not want to be cut off and shoved into a box. Bad luck, off with your head!
I bought a couple of artichoke thistles (Cynara cardunculus) sometime last summer and left them in a vase until now. The gradual change of colour and shape as they blossomed and slowly aged was quite interesting to observe. Inspired, I got a kick out of playing with scrap yarn.