BridgeDB should disable obfs2 distribution
The number of these bridges has dwindled quite significantly, and most of the bridges which used to offer obfs2 now offer obfs3 and/or obfs4. If someone is still really determined to use obfs2 for some odd reason, they can use https://bridges.torproject.org/bridges?transport=obfs2
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information