If I designate an item before Shabbos for an acceptable purpose, it can become not muktza for me. Can another person, who I did not have in mind when I made my initial declaration the use that item?
My specific case is that snow fell on Friday and I designated that I would be using the fallen snow to make snow cones (snow+grape soda!) on Saturday. No additional snow fell between designation and consumption. Some were hesitant to try one due to muktza concerns.