I have quite a detailed provision in my will which goes along the following lines - held by trustee until my youngest child (now 6) reaches 25, at that point if one of them want it they can have it, but must committ not to break it up, if they dont want it, it reverts back to trustee to donate to aceptable party at that time or put into a museum - with some quite stringent conditions. i have also resereved a sum of money for the conitnued building of the collection if i happen to be unable to do it from this plane........ maybe too much, but i really dont want it to be broken up or mis-treated!! gladly willing to acept any suggetsions......