Why did the proton go to the party?

Because it was a positively charged occasion!

Proton: "I'm feeling really charged up today." 
Proton Friend: "Well, you're certainly a positive influence."

Protons: the life of the party.

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Nebula Nonsense

A nebula is just a big, gaseous joke.

Nebula: "Hey, I'm just a cloud of gas, but I'm feeling really gassy!" 
Nebula Friend: "Well, you're blowing me away."

Nebs are the real comedians.

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Electron Ennui

Electrons are just electrons, but they're feeling really down.

Electrons are the existential crisis of the particle world.

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