You can ensure that your legacy lives on after your death, in two different ways.
Make the WMFC a beneficiary in your Will. Your gift can be for any specific amount, percentage or residue of your estate. All it takes is a simple clause in your Will.
Or make the WMFC a beneficiary of a life insurance policy you already own, or one that you buy.
In either case, a tax receipt for the full amount received by the WMFC will be issued at the time of your death. This may offset capital gains or other taxes payable, and lessen the financial impact on your estate.