[m&p45acp10+1]

You can clean brass without a tumbler. It may not come out super shiney, and new looking, though it will be clean enough to load with, and shoot.

I used a large mouth plastic jar. It will work just fine.

One quart jar
Put the brass into the jar to between half and three quarters full
Add:
1 table spoon of white vinegar
2 table spoons of dish soap
Fill to just almost full, and put the lid on tightly. Shake it to mix and knock any crud out of the cases. Shake vigously for a bit. Pour out the soultion. Fill with clean water, shake, and repat with pour out, refill, and shake till the water is clean after shaking.

Pour out water, and take brass out. Put it on a towell, and let it dry completely. It takes about 5 minutes or so to this, and however long it takes for the brass to dry.

Note I now own a tubler, and an ultrasonic cleaner. The tumbler gets used for super dirty brass that comes out of the barrels at the range.