Yep, not too sure on how much it is, but we saw them at the PSI promotional merchandise show in Germany a few weeks ago. Pics here: http://brandedtile.com/
If you’re doing outdoor events then I’d say you can’t go wrong with branded umbrellas. If only they’d invent one with a cheap tracker to let you know you’ve left it behind somewhere too - We do loads of great stuff made in the UK at Umbrellastore.
I’d always appreciate something functional, though that might just be me! Things like folding plugs (there are promotional versions of the Mu plug) will always be kept in a backpack or briefcase. Power banks are OK, though most cheap ones don’t store enough charge for power-hungry iPhones/Samsungs now.
I’d love to know what people think about event merchandise so hopefully we can do something a little different!