New discovery. I normally wouldn't bump, but I plan on doing another random model exploration, so I might find more. For now:

TsukidashikunBig
Tsukidashikun is the name for the pushy wall. Despite the name, this one is the same size as the other. Fun fact: they are 15x5x5m.
Edit:

SampleMapPartsObject
Not much to say. A 2m cube.
Edit: Guys... I'm starting to think... maybe those big bugs really were meant for this game? Look at the butterfly's texture:

This is the same style and design as the other bugs. Creepy...
Edit: Fun Fact: The DropOfWater planets have the same layout as Drip Drop Galaxy's sole planet, but at a much smaller scale and without the random crashed ships.
Edit: What is this?

SpiderItemShell
When was this used? It reminds me of Beady Long Legs, but I know Pikmin well enough to say this is different.
Edit: Last thing for tonight. Does anybody remember a purple version of this enemy, let alone one that could be frozen?

KariKari
The blue version, seen in Good Egg Galaxy and others, is Karipon. Related files are KariKariIce and KariKariFreeze. The ice looks like a random wiggly blob.
Edit: New day, new discovery. Remember that planet in Good Egg, the one that was a disc with rocks on one side, SMB3 block and a cannon tower on the other? I just found an altered version of it, under the name PieFortressPlanet, with the tower destroyed. All that remains of it is a stump. Unless I'm mistaken, I don't remember that ever being used.

Edit: Beta Bob-omb found! He's located under the name DamageBomb. He uses the same beta environment image as BossCrab and others.

Edit: Even bigger and greater discovery! The sky I've been using for my Comet Observatory renders, CometNearbySky, the one featured in my wallpaper, is actually unused! I should have known something was up when I saw the lack of star-shaped lights on the planet and a huge comet filling half the sky. I'll try to get a picture, but this kind of thing isn't easy to view in bmdview. The sky actually used in the game is VROrbit.
Edit: PoisonPlant?

Edit: Hello, beta launch star!

SuperSupinDriver

...What's a Mocina? It's... a blob thing, and apparently it can go after coins.
Edit: MoveVector. Not sure what its purpose would be, but it uses the beta environment texture.

Edit: This is interesting. It's something the developers probably used to test normal maps. It is, in fact, a flat image.

NormalMapBoard
Edit: This is kinda cool. It just seems to be some kind of planet.

NormalMapObject
Also, I found out NoteFairy is Jungle Beat's fairy that follows around DK as you get combos.
Edit: Awesome. Beta Cyclone Stone, under the name OnimasuZone. (Made of several parts.) But there's a problem. Half the level was wiped. OnimasuZoneStartParts is empty. 

Edit: Looks like ChargeSpot has a friend, NarutoSwitch.

Edit: This game is a goldmine. Just found an early version of Buoy Base Galaxy's frame, under the name FloaterLandPartsFrame.
Edit: Speaking of goldmine, I just hit a real interesting nugget.

FloaterLandPlanetLow
Two copies of one of the beta parts exist under FloaterLandPartsA/B. The most interesting thing is that there's a target on the side, where Mario would arrive at the planet after being shot from a cannon. The fact it's a low version at all suggests it used to be part of a larger galaxy.
Edit: A part of Buoy Base that didn't quite make it to the final stage. Steps A, B, and D are used.

OceanFloaterTowerRotateStepC
Edit: P Switch!

PTimerSwitch
Edit: Hey, Friedslick6, is this the planet model you were talking about?

PlanetDisk
The other side has a flowerbed, some mushrooms, and three cylindrical hills.
Edit: Another DKJB model, I think?

NeckDragon
Edit: Found a duplicate of the StarMan enemy, under SpotLightEnemy.
Edit: Found what is possibly another beta planet. It's called ExterminateMerameraPlanet, and it bears little resemblence to any final Melty Molten Galaxy planets. Meramera is the name for Burn Bit. It has a rather low polycount compared to regular planets.

Edit: I wonder how large this will get before someone notices it. Found a beta item block, appropriately named ItemBlock. It has a "used" state texture, meaning it would act like Item Blocks in regular Mario games.

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-Peardian-
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"Kindness is the language which the deaf can hear and the blind can see." -Mark Twain

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