The streaming widgets allow for you to easily set the content to be randomized. Just find the recent streaming widget you would to "randomize" the content and follow these instructions:
Step 1: Set the sort order to: $sortingOrder = 'RAND()';
This is what is usually looks like by default:
It should look like this when you are done:
Step 2: Delete "dp.post_id ".
This is where it is located:
This is what it should look like when you are done: