Can I use calcium chloride instead of calcium lactate for making edible bubbles?

Both of those options will work, although including the unit number on the street line is preferred.

The beak is a black part that is in the center of the tentacles, it is very hard and it really does look like a beak. Once you cut open...

Yes. Just use a small pin to poke holes in the bubbles, but be careful not to tear the window tint. Then, just use a squeegee or a sponge to...

You can, it just won't be as flexible when you fold it. I'd recommend not adding stems, as that will put more weight on your flowers.

Bend a small wire hanger into a circle or whatever shape works best for you to blow bubbles. This can be really fun if you want to make really large...

I don't think you should use a cast iron pan but it could work if you are desperate. I would definitely use a gas stove.

Any standard dishwashing liquid will work and shouldn't harm your baby.

Yes, that's a good way to get a sword.

Tape will not last as long as glue, especially a glue made for paper. There's no reason you can't use origami paper, though.

You may mean "methylene chloride", and you can find this in any store that sells epoxy paint. Do not use methanol chloride, even if you can find it.