Using some pre-memorized number associations helps a lot with this, like peg systems. https://en.wikipedia.org/wiki/Mnemonic_peg_system
personally I do something like 0 egg 1 pen 2 swan 3 butt 4 sailboat .. etc.. and then make a little story for the number using the interaction of those things. This is not for long term memorisations, but just for recall in the mid term.
What are the other digit/noun combinations you use? This seems better thought out than the wikipedia page you linked.
The combinations I use are probably not as good for you as ones you would come up with for yourself. I would suggest just drawing out the numbers 0-9 and looking at the shapes and sketch a few things under each one, that look like that. If need be, rotate or flip the shape, or embellish slightly so long as they are all distinct. They should be easy to imagine objects that can be used flexibly. Salience for memory can come through things that give emotional response, so don't be shy about it.
and then use these to make simple stories like .. 13250 .. pen poked into the butt of a swan who yells grumpily and throws an egg..
Oh my god you just cured my inability to memorize the major memory system. The butt is so intuitive.