DIY Instant Mocha Mix Favors by DIY Instant Mocha Mix FavorsMix until completely combined Each adorable test tube will perfectly fit 3 tablespoons of mix. Using a funnel helps. Once all 3 tablespoons are in the test tube, gently tap the bottom of the tube onto the counter a few times to pack the mix down. This recipe will make about 15 test tubes. Next, add your choice of cute toppings… here I’m adding chocolate sprinkles and mallow bits. You can add anything you’d like or nothing at all, it’s your call. Place the cork on top and you’re done! Aren’t they so cute!