This is a source of ongoing value which is pleasant enough
Create a token that's a copy of one of those creatures, except its power is equal to the total power of those creatures, its toughness is equal to the total toughness of those creatures, and it's a colorless Eldrazi creature
It could also serve as a tea bag storage box, bathroom, or photo storage box, or even a filing cabinet
Some Commander decks even use all five colorswhite, blue, black, red, and greento unlock the full spectrum of strategies
Auction Houses: For high-end cards, consider reputable auction houses specializing in collectibles
I suppose it also plays well with Teferi, Time Raveler against tokens or Hangarback Walker / Walking Ballista I mentioned this as a sideboard option