Apart from "very rarely", how is "ikebana" (Japanese flower arrangement) typically pronounced in real life by non-Japanophones? Is it the same as how it's pronounced in Japanese, or has it changed like "karaoke", "kamikaze" and "karate"?
You may listen to the Japanese pronunciation for yourself by clicking the speaker icon in the lower-left of the input box. Non-japanaphones is a very large class of speakers, and likely there are as many unique ways to mispronounce Japanese as there are other languages. Besides mispronouncing long vowels and the Japanese "r," anglophones tend to substitute their language's stress accent for the Japanese pitch accent.