Here is a report of Buffalo Hockey players arriving wearing 'LOVE FOR 3' shirts. The football game was last night. So, not even 24 hours goes by and T-Shirts are printed, shipped/picked-up and distributed quick enough to show support for Damar Hamlin.
Something seem off...
https://nypost.com/2023/01/03/bills-damar-hamlin-news-live-updates-after-cardiac-arrest/
The same people who own the Buffalo Bills Football team also own the Buffalo Sabres hockey team. They decided to get those T-shirts made quickly.