Tape is always a necessary tool to have since you never know when you'll need it, and this Subway System Tape will not only be sticky, but it will also prevent you from becoming lost.
The New York subway system is a maze of tunnels and it can be incredibly hard to navigate if you aren't a born and raised New Yorker. This tape has the outline of the subway tracks on the outside of it. This could be really handy if you are new to the city, because you could study the tape and hopefully know where you are going.
Of course, since this is tape, it is sticky and can be used for practical purposes. However, if you wanted to be creative with this subway system tape you could decorate walls or notebooks with it as well.