I did something sort of similar to an indirect colleague.
Indirect because we work for different companies, on the same site doing the same job.
They had just lost their dad, not suddenly but suddenly at the same time.
I was the only one outside of his company that knew this.
One random day, aeons ago we had a conversation about what we would love to be able to buy if we were rich. And they said a magical dwarf they'd keep in their shed at the bottom of the garden. And then the conversation rambled onto elves and dwarves rights. It was all very weird, and like I say, aeons ago.
When they returned to work a week after the death, and before the funeral, I popped an envelope into their stupidly unlocked car.
In the envelope was a note with a poem in that I have found helpful in hard times.
And an A3 drawing of a shed with a dwarf outside of it.
I got a text about 4 hours later just saying "you random fucker, i love it".
I'd done it with the same intentions as you, I wanted them to know they had my support, and to give them a little smile. No weird intentions. The execution was weird. And probably looked weird to anyone who saw me clambering into their car and being all furtive. And also weird because i can't draw. The dwarf looked weird as all hell.
So in conlcusion, I'd love it if someone did that for me. And I dont think it's weird. But clearly, I am a weirdo.