We only use mayo in other recipes so we buy it and have it sitting in our fridge forever. And all the recipes I saw on the web called for mustard powder or something. But these are ALL ingredients I have on hand most of the time.
I made a quart of aioli yesterday: olive oil and garlic mayonnaise, amazing.
It is a little yellower , may be the yolks or may be the olive oil.
Don't need mustard powder, I use a dijon mustard that I keep in the fridge and it works quite well...just taste and keep going. Add more acid (vinegar, or lemon/lime juice) if you like. All up to your taste. I use himalayan salt and fresh ground black pepper.
Also a few day ago I pickled 28 eggs and placed them in a big glass jar in the fridge to pickle further. Takes a couple weeks I think.