This will get it for you. I don't know if there's a way to tie the name back to the creating SPID though. don't think so.
SELECT * FROM tempdb..sysobjects WHERE NAME LIKE '#%' AND xtype = 'U'
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability