As a fun experiment, why not try selecting the rhyme words in advance? You have the freedom to make them offbeat and wonderful, and then you can let your imagination work of the more imaginative ways of connecting them, instead of struggling to come up with a rhyme to fit in with the logic of the development of your ideas. Let the sound move your ideas around on the first couple of drafts, and then revise for sense later on to see what you come up with.
If you can, try to drop in the names of some actual concrete things that you don't usually find in poetry, your basic kazoo bands and switchblades and vacuum cleaners for example to keep the poems from getting too abstract and flying off into outer space with abstraction. If you know somebody with an unusual name or nickname, you can always drop that in, but even dropping in somebody's real name can give a poem a whole different feel. I once kbnew a poet named "Antler," for example. And James Wright tossed in the mention of a friend in the middle of a poem; "Wayne" was the guy's name, and it was in the middle of a poem about the poetry of Jonathan Swift. It worked out pretty well.
These are experiments, and there for fun, not for anything else. If you enjoy them, you can toss them into your quiver and pull them out from time to time when you want to get out of a rut in the middle of a poem, or when you want a way to start or end one. Enjoy, I hope.