11) Claim Check
Bring the Eye drops back to the Big Goron at the summit of Death Mountain before the time runs out to get the Claim Check. A quicker way to get to him is to ride Epona to the Lost Woods, go R,L,F to warp into the Goron City, then exit and climb the mountain.

12) Big Goron's Sword
Wait for three days and return to the Big Goron at the summit of Death Mountain to get the big Goron's Sword.  You can play Song of the Sun 6 times if you're impatient.