Megaphonez
Where you may find them, in finding order

No. X Y Callz for Found
1 30 12 Springz In plain sight atop a Black One-Time Switch (BOTS).
2 1 42 Spy Gear In plain sight, northwest of, and outside 'The Brickyard'.
Reached via a Red Warp (RW).
3 15 27 Gauntletz In plain sight on a Yellow Toggle Switch (YTS) in the opening Arrowz maze.
4 20 22 Shovel In plain sight on a Blue Toggle Switch (BTS) in the opening Arrowz maze, with strategically placed Gauntlet-breaker Brickz making it difficult to reach it.
5 30 17 GooberStraw In plain sight surrounded by Holez .
6 7 2 GooberStraw In plain sight next to two Holez , in the first Kitchen Slime area.
7 8 38 Boomerang In plain sight where six Rolling Olivez are moving over Foundation Tilez .
8 24 46 Gauntlet-breaker Brick In plain sight in the northwest corner of 'The Brickyard'.
9 35 43 GooberStraw In plain sight northwest, and outside of, 'The Pegboard' in an area guarded by five enemy Gruntz .
10 26 51 Gauntletz In plain sight surrounded by Green Pyramidz (GP).
11 17 46 GunHat In plain sight in 'The Brickyard' on the northern edge of the central griddle.
12 17 61 Wingz In plain sight on a Blue Toggle Switch (BTS) blocked by two Sugar Cubez .
13 60 18 Gauntletz In plain sight in the Spikez area guarded by a enemy Grunt .
14 47 67 Shovel In plain sight on the plateau in the middle of 'The Pegboard'.
15 48 52 Sword In plain sight on the plateau in the middle of 'The Pegboard'.
16 91 4 Gravity Bootz In plain sight in the KitchenSlime area in the northeast corner.
17 58 25 Toob In plain sight in the Spikez area.
18 36 8 Squeak Toy In plain sight in the Spikez area.
19 73 38 Spongegun In plain sight in the area guarded by two enemy Gruntz .
20 92 44 GooberStraw In plain sight after a Grunt goez through a Blue Wormhole (BW).
21 29 1 Gauntletz In plain sight northeast of the King's Fortress.
22 92 76 Jack-In-The-Box In plain sight on a in the small pool.
Note: It does not matter which Megaphone you acquire and use first! The objectz will be called for in the listed order.

In this Custom Level, it is possible (intentionally designed that way, so the solver can "go wrong, go wrong") to use the objectz called for in other than the intended solving sequence. If you find that you have failed to pick up and use a Megaphone, you will have to go back to a previous SAVE (hopefully not all the way back to the beginning) and keep the keeper of the GruntzMachine (Resourcez) on his toez!