Hey Daan,
Don't use that brush any more, use a badger hair brush now. That brush didn't smell bad to me at all, maybe you forgot to clean it ;)
It looks like it got run over by a car though.
On a side note, why don't you join the dutch srp group we've got on the site.
We also run a separate IRC channel for our Dutch conversations.
Greetings,
kevor.