Is there any item that allows me to inflate others like a balloon?

[Alwin Alcott]

as you state its for use at OTHERS ,so it's most likely a griefer tool. Use it and the chance you enjoy SL much longer is very little, you will be banned in no time.

[Alwin Alcott]

as you state its for use at OTHERS ,so it's most likely a griefer tool. Use it and the chance you enjoy SL much longer is very little, you will be banned in no time.

[Freya Mokusei]

According to a highly prescient meme known as Rule 34, "if it exists, there is porn of it - no exceptions". This is often more true for SL than other places around the Internet.

I've seen some inflatable kits for avatars, in a couple of styles. There's a pretty significant number of rubberists around, though I couldn't say how many enjoy expanding their horizons in this way.

I would recommend the use of Search tools within SL to track down like-minded people, at places where rubber is part of the dress code.