Everybody loves Hypnotoad!
Top one is interesting, but as you mentioned, it's rather costly in explosives. I'll see if I can do anything about that.
Second one...well, I sort of already knew about it. You can hook directly to the last tower from the ground, BTW, and a roll jump+jumpslash as a Zora gets you to the heart piece with the right angle.
EDIT: I can get it down to 13 explosives, not counting the one used for the initial goron bomb jump. That seems to be the limit though. Considering it doesn't save a whole lot of time, especially when not done with chus, we can probably forgo this one.
Second one...well, I sort of already knew about it. You can hook directly to the last tower from the ground, BTW, and a roll jump+jumpslash as a Zora gets you to the heart piece with the right angle.
EDIT: I can get it down to 13 explosives, not counting the one used for the initial goron bomb jump. That seems to be the limit though. Considering it doesn't save a whole lot of time, especially when not done with chus, we can probably forgo this one.