Create Christmas present schedule

Hello EXCEL GENIUSES OF THE WORLD!

I am trying to save my entire family money and a feeling of obligation to buy a gift for EVERY DANG KID in our family who is present at Christmas Eve. THERE ARE ALOT! Anyhow... I would like to have a Secret Santa for the kids and a White Elephant for the adults. This year there will only be 12 kids present and 8 adult households present. I want to create an excel where each kids gets two presents from different adults, parents will not get their own kids, parents without kids will only get assigned 2 names, and parents with kids will get assigned 2 names per kid they have. 

This is what I have so far.... 

Values of the Adults without kids: M, J, C, T, AK

Values of the Adults with kids: DS (=5 kids), NC (=4 kids), AP (=3 kids)

So the values for the kids would be DS1, DS2, DS3, DS4, DS5, NC1, NC2, NC3, NC4, AP1, AP2, AP3 (But twice because I want each child to get two secret Santa gifts because they are used to this being such a huge event with hours of presents being opened :/  )

I want everyone to be assigned at least two names and once reaching their max limit assigned, continue to have the list randomized between the rest of the adults until each adults limit is reached, AND no parent has their own child AND each child has been assigned to different adults twice.

Honestly, EXCEL beats me every time and I know that there are brilliant people who would thrive off of figuring this out!! PLEASE HELP! 

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