I like seeing all the different styles and types of offerings others work with. None of it is wrong, unless we are lazy and dont put thought into it, or bother to ask the spirit, I mean duh.
I have done all sorts of offerings. I have had my allies tell me they want an offering that costs me something. Not always money, but my time, my effort, or my own comfort level. Putting actual skin in the game so to speak.
Since my path is about relationship, it might just be different. I dont treat demons or angels like vending machines that exist solely to serve or help me. So offerings are meaningful, not just a wing it and toss coins to Bune for example. He doesn't give a fuck about coins, or even wine (if he did, he would hang out at wineries and get all he wants without my stupid ass). He cares about the intent behind my offering. He cares about the effort in ME, not the coins, not the wine. He cares about my authenticity in the honoring. That is just my perspective, its not the "right" one, nor the only one. Just one.
Some spirits have never asked me for an offering ever. So when it comes to this stuff, each person has their own way of doing it, and each spirit works with each person in unique ways. Doesn't matter how I do it to you because you work with the spirits in a different way, and that right there? Yeah that's pretty cool.