The Dutch Hobby Computer Club HCC and ubuntu nl are organising the Dutch Ubuntu release party for Lucid Lynx (Ubuntu 10.4 LTS / Long Time Support version)
Of course your favorite free certificate provider - CAcert - will be present.
Create your account at http://www.cacert.org, login to your account, get some prints of the assurance form using CAP Forms and bring them with you.
If you have more as 100 assurance points and have passed the CAcert Assurer Challence, so you are a CAcert Assurer, pick up your Assurer pin/badge at the CAcert booth table!
Make sure to enlist as assurer on the event page.