Iceland spar/sunstone. If you don't know what's going on with this crystal, look it up.
 
 

CMY cube. Look it up.
Pro: Beautiful, fun desktop item. Good for someone who likes colours, such as a photographer or a learning kid.
Con: Expensive. Is there really a use for it? It can bust up, peel off. Then there's this issue of getting the proper product from the original Japanese man art of play
 
 

Have your kid make a spectrometer with an old CD, a cereal box and some tin foil. What are the advantages of that?
Hmm .. optical options. Make a spectrometer, have someone make it, or neither? image search
 
 
 

Curated newspaper comics. You'll have to figure it out yourself. I've got my own refined factory procedure, slicing newspapers, choosing, and figuring out what to whom and templated packing and presentation. Comics Kingdom is an option.
 
 

Ouija boards from Pandora Witch Shop. Make of that what you will. Beautiful, wood, and your money would go to Ukraine.
 
 

Speaking of sending money to Ukraine, there is ugears. Not quite my thing, but stick your nose into this and explore the options. Note the assembly time.
 
 

What about things made of paper? I don't know how much people will like this. It is free, and a different, non-electronic experience. Kids could do the crafts. What are the options?
 
 

You can look up papercraft. I'm not averse to a papercraft A7V tank. There is that nice optical illusion dragon that keeps looking at you as you move. Look up "dragon illusion". Assuming the recipient is making it, tell him to follow the instructions, not what he thinks the instructions should be. The recipient will ignore you. I just came across a paper boomerang. Perhaps more of a project than a present. Papercraft nativity Raises questions of timing. Making your own pop-up card is not as hard as you might think. I wonder about making your own duck rice fox boat puzzle. Give kids something to do under the Christmas tree before the presents are opened. And then there's origami. One can make Christmas decorations with paper products.
 
 

Wine cork trivet. Well .. Oak Games approves of the materials.
 
 

I've developed a minor obsession with the Mercator knife, brass. I actually have no use for it. Maybe a small one would be preferable, useful for opening packages. That does you little good (.. unless you are sending it to my Christmas tree).

However, someone might be interested in that fish knife from Czechia. It would be useful when you are picking mushrooms in Moravia. Inexpensive. Cute. You can get it from Lee Valley Tools.
 
 

A newspaper subscription of some sort.
 
 

Popsicle stick abacus (shrugs shoulders)
 
 

I have a soft spot for mood rings.
 
 

You could send a present to the people of Ukraine by contributing to a charity. Charities are good, but they really need weapons. You can find a way to contribute to sending drones.