Please check the Kolkata event posters.
I made it in tikz
https://fedoraproject.org/wiki/WWFS-FWD%272016
Best
A. Mani
Prof(Miss) A. Mani
CU, ASL, AMS, ISRS, CLC, CMS
HomePage:
http://www.logicamani.in
Blog:
http://logicamani.blogspot.in/
http://about.me/logicamani
sip:girlprofessor@ekiga.net