In the order acquired (roughly)
Grunt #1 enterz the puzzle and landz near them.
atop a Secret Switch 
(SS).
). Spongegun 
Grunt #1 sendz him away and pickz it up.
) atop a Blue Hold Switch 
(BHS) in the southwest corner of the map, reached via a Secret switch ... Shovel 
Grunt #1 turnz the Grunt into Goo 
to acquire it.
Grunt #1 reachez it via a SS .) atop a BHS in the northwest corner of the map, reached via a Secret switch ... Shovel Grunt #1 turnz the Grunt into Goo to acquire it.(Not really necessary, except to speed up the solution, as Straw can also defeat the enemy Gruntz.)
Grunt #2 usez three Megaphonez (#1, #2 & #3) to call for it. Newly baked Barehanded Grunt #2 takez it later.
in the southeast corner of the map.) atop a BHS in the southeast corner of the map, reached via a Secret switch ... Shovel Grunt #4 turnz the Grunt into Goo to acquire it. Grunt #2 usez three Megaphonez (#1, #2 & #3) to call for it. Newly baked Barehanded Grunt #3 takez it later. in the northeast corner of the map.) atop a BHS in the northeast corner of the map, reached via a Secret switch ... Shovel Grunt #3 turnz the Grunt into Goo to acquire it.
Grunt #3 reachez it by going through a RW ... and a little leg work.
Grunt #4 goez through a BW in the central asteroid, and landz near it. Grunt #2 usez three Megaphonez (#1, #2 & #3) to call for them. GooberStraw Grunt #1 takez them from the GruntzMachine (Resourcez).
in the east central part of the map.
Grunt #1 goez through a Blue Wormhole (BW) and landz on and usez a Megaphone (#4) to call for it. Grunt #4 (or #3) will use it later.
Grunt #3 (or #4) takez them from the GruntzMachine (Resourcez).
in the middle of the King's Fortress pool ... Gauntletz 
Grunt #1 pickz it up.Does not count as a Tool.