Feasability: Hypno-toad; Insert LED's and sound into a plastic toy

Hi, I wonder what you think about the feasibility of the following idea.

I have this hypno-toad toy from the TV show Futurama. It’s made of plastic and it’s hollow. It’s about 7 inches wide and 5 inches high.

I’d like to insert some LED light behind the eyes. Ideally, they would light up in a “hypnotic” circular pattern.

I’d also like to have a speaker to play the buzzing sound of the hypno-toad from the TV show.

I’d like to press a button and have the eyes light up and play the sound. Here’s what it looks like on the TV show :

Would this make a good first Anduino project ?

It is possible to put 4-5 LEDs in each eye, attached to long wires. Can I hide the speaker and the motherboard in a box that the toy sits on top of ?

Thanks for your advice

All Glory to the Hypno-Toad

Are the eyes big enough to fit 4 or 5 small LEDs into?