In Belgium you can support 'a good cause' at the time of your death by giving away a piece of inheritance. That charity could also be Rainbow4Kids. Your notary can certainly tell you more about it. He'll ask you what charity he can mention. That's 'Rainbow4Kids non-profit organization'. He's going to need our company number, too.
That's BE 0886.676.109. More information about this can be received at Katrien Vermeersch katrien@rainbow4kids.be.
There is also a brochure ('Make a difference, a good cause in your will') which you can download here.