Getting the smell out of a Seafan

[la mer]

I recently returned from a trip to Cancun, and we were given a Seafan by a man who wanted to thank us for showing him this great spot to find shells.  We brought all of our lovely shells home and they are scattered throughout my house to remind me of the wonderful turquoise water and coral sand.  

The Seafan, on the other hand, is sitting outside in 30-40 degree temperatures due to it having a very strong odor.  It has been outside for a month now and it still stinks!  Does anyone have any ideas on what to do with this otherwise lovely creature?

Thank you in advance!