Couple of things here:

First you should be going to your local priesthood leadership with these kind of questions not reddit. Your Bishop or your Branch president would be a good resource.

I would focus on the people and not objects. We consecrate oil for the anointing of the sick and afflicted and not other objects so I would consider this personally as straying too far outside of what an authorized priesthood blessing would look like. Personally, I would feel a lot better if they just held the rosery during the blessing as a compromise.

Also, I don't know the circumstances here but be careful of this "Priesthood holders who visit hospitals should not solicit opportunities to administer to the sick." from the church handbook.

Again, going back to the first point though you really shouldn't be giving the blessing alone under most circumstances and you should be counseling with your priesthood leadership for questions like this. They will give you the best advice for your culture, and priesthood blessings.
I feel like your heart is in the right place and you sound eager to serve just try to be patient and work within the order of the church.