It’s 600 platinum
Typically, Nintendo has been updating the My Nintendo physical reward storefront (paid for by way of platinum points currency) with every first-party release. Switch Sports got a towel, and now Mario Strikers: Battle League has a drawstring bag.
The bag is 600 platinum points, clocks in at 15″x18″, and is double-sided (the front showcases the main logo, while the back has more roster members suited up in various poses). You can find the listing for it here.
Nintendo also has another little bonus: Mario Strikers party favors. By redeeming 30 platinum here, you can print seven pages of stuff yourself, including “eight invitations, four cupcake holders, six pennant flags, and six party toppers.”
As a reminder, if you want physical rewards, you can find our full Platinum Point guide here, which has been updated with details on weekly missions: bookmark it for when you need quick points for a reward. A handful of points is incredibly easy to get, as that’s basically just 15 minutes with Super Mario Run, or a quick sign-on to the 3DS or Wii U 3Shop. Also remember that any shipments are bundled together, so you can pay a flat rate for multiple items instead of paying it each time. Just know that items go out of stock on My Nintendo frequently, and some are never restocked.