I’m not sure what your style is but you can score vintage ceramic creamers with lids, and ceramic tends to be very food safe.

If it does contain lead, it’s not safe for food use. If you’re able, you can test it for lead. Here’s a nice article.

For work travel I use a Cotopaxi Allpa 35L. They’re an investment, but made very well, should last a long time, have a repair warranty, and a lot of the features I look for when traveling light for short business trips. The 35L is also the perfect airline carry on size.