I've tried fillers in other fashion, such as greeting card verses and board game clues. For every huge batch I came up with, maybe one sold. It wasn't a very profitable business for me. This is how I occupied most of the 1980s. I can tell you my earnings were low.
Light verse is another possibility for a woman of few words.
If you like working for free, this is ideal work. However, fewer newspapers are accepting light verse and the magazines that do are stocked for years in advance. So this is why I now write features. It wasn't a happy decision for me. I prefer shorter ones, mini-features.