Each kid would get an equal trust share. The trust would specify that all income would be distributed quarterly. In addition, the child would have the right to request distributions of principal up to a specified limit each year (probably $75,000 to $100,000). If they wanted to pull more principal out of the trust than that in any given year, it would be up to the discretion of the trustee. Upon my kids' death, anything left in their trust share would have a general power of appointment. If they don't exercise their general power of appointment, it would go to their kids per stirpes.