Ulama al-Salafi Ibn Qayyim says:
"If a man makes a hole in a watermelon, or a piece of dough, or a leather skin, or a statue, and has sex with it, then this is the same as what we have said about other types of masturbation [i.e., that it is halaal in the same circumstances given before, such as being on a journey]. In fact, it is easier than masturbating with one's hand".

Shamsuddin Ibn Qayyim al Jawziya nother place in his book this silly mullah imam Hafiz Ibne Qayyam has said that in a.m constraints a woman can use cocumber. (what a shame - we follow these freak imams instead of following commandments of Noble Quran)

"If a woman does not have a husband, and her lust becomes strong, then some of our scholars say: It is permissible for the woman to take an akranbij, which is a piece of leather worked until it becomes shaped like a penis, and insert it in herself. She may also use a cucumber". Hafiz Ibne Qayyam.