Philatelically, I have been collectings the topic of "Shuttlecock Games" (games played with a shuttlecock) for nearly 40 years. (There are about 30 different games played with a shuttlecock.) If you want to see in detail what this entails then go to the website which I put there some years ago. It does not contain any pix and I suppose that I should be adding some - maybe some day I will get around to doing it.
These days I concentrate on cataloguing the various special cancellations which there are on the subject. (In excess of 300 of them from 30 about countries.)
Having found Delcampe I immediately found 2 new items listed which was a red letter day for me.
If anyone is sufficiently interested I can let them have a free copy of the catalogue via eMail attachments. Alternatively I can send them a photocopied version if you pay for printing and postage,

Anyrate I will not take up any more of your time

Happy collecting.