You can download the mod here:

Radio

For the radio you'll need two blocks: the Disc Block and the Inverted Disc Block (Note: The following two recipes are shapeless)

Then you craft it like this:

The ruby bricks can be obtained by smelting rubies, found in caves.

Dynamite

Generates an explosion at your coords and kills you. Can be crafted into a throwable dynamite. Putting 9 dynamite will result in a Dynamite Block, activated with click. Any combination of dynamite and a potato will create dynamite fries, which you can eat and they will explode.

Custom

The custom songs are Waters of Megalovania and Among Drip

The custom commands are /wom and /amongdrip, that play the songs above.

There are some custom advancements too, find them out yourself!