Wcctnoam 
Keep in mind we already have *childproof horn*, which I've personally used for all Izzy/tennis ball images, and we also have *hornball* and *horn impalement*. I already felt there were too many tags with these three, and I'm not sure we need a tag for each possible item or category of item that can impale a horn.
In the case of something like Izzy and her tennis ball that is very popular, I can understand having a tag for it, but it is specific to a character and an item. For Twilight and her famous pancakes, I think we already have a tag like *twicakes* or something. But again it's specific to one character, one item, one situation and extremely popular. Having a specific tag for impalements depending on food or other item categories feels a bit over-specific to me, and a bit of a slippery slope. It feels like we would end up with too many tags.
Personally, I can accept two or three specially popular tags, but I feel everything else should just be *horn impalement, object*.
In the case of something like Izzy and her tennis ball that is very popular, I can understand having a tag for it, but it is specific to a character and an item. For Twilight and her famous pancakes, I think we already have a tag like *twicakes* or something. But again it's specific to one character, one item, one situation and extremely popular. Having a specific tag for impalements depending on food or other item categories feels a bit over-specific to me, and a bit of a slippery slope. It feels like we would end up with too many tags.
Personally, I can accept two or three specially popular tags, but I feel everything else should just be *horn impalement, object*.