Pass an array of nids to a view
You can add a "Content: Nid" contextual filter to your view, so your view will narrow down the content to the NIDs you provided. Make sure you check the "Allow multiple values" box when configuring the contextual filter. This will allow a url like example.com/myview/12+45+78 which would limit the results to node IDs 12, 45 and 78.