As I was walking to my car today after work I saw a woman with a Battle Royale umbrella – I tried to get a cheeky snap on my phone but for some reason when the hairy, slightly dishevelled man got his phone out and surreptitiously tried to photograph her, her pace quickened.
With hindsight I should’ve just asked.
Edit: A quick Google search throws up this:
In addition to the more traditional methods listed above, Tartan created novelty merchandises such as the syringe shaped pen created for Audition and Battle Royale umbrella (Fig. 4) and t-shirts (Fig. 5) to entice particularly younger audiences…