Not a necessary step but poking a hole with a toothpick thru each tomato will be a way to expedite the flavoring process.
Divide between 2 quart jars the tomatoes, habanada pepper slices, thyme, peppercorns, garlic and mustard seeds.
In a small pan, combine vinegar, water, salt, and sugar over medium heat to dissolve ingredients.
Using a funnel, pour the hot brine into jars leaving at least 1/2 inch of headspace.
Store in fridge. They will be ready to enjoy after 1 day!