Can you use both katakana and hiragana to write 1 word?

Question:

Okay, this sounds a bit odd.
What I mean is, to write for example "ringo", could you write "rin" in hiragana, and then "go" in katakana?
Now, I know that ringo in this case would be written with hiragana, but since my vocabulary is still pretty small, I don't have a lot of examples to choose from XD
But basically - is there ANY word in japanese at all that would be written with a combination of hira- and katakana?

Answer:

I think it's possible in a case of coinage, or in some irregular case.

For example, a marble (toy) in English.
http://en.wikipedia.org/wiki/Marble_%28t…

It's usually written as "ビー玉(bee-dama)" , katakana and kanji.
If you talk about bee-dama to a Japanese little child who didn't learn kanji yet, you can write ビーだま instead ビー玉.

ADDITION
This maybe a coinage. TOYSЯUS in Japanese is "トイザらス". Foreign proper nouns are written in katakana, but in this case only "ら" is hiragana among katakana.
Since write "ラ" in reverse way is not easy, so it was worked out to change "ラ" into "ら", instead reverse "ラ".