Actually it is against Etsy rules to have listings for shipping only
I actually use an food scale to weigh out my packages, so I know how many ounces they weigh before shipping. It takes quite a few sales before you are a bit more intuitive about weight.
I see people raise their item cost, and offer free shipping, but I personally don't like that approach.. because I figure they jack up the prices. That being said, I notice that some of your items are in glass... Glass is really heavy. I would just include in the listings that these items are not made of flimsy material, and are therefore a little heavier. Just let them know that they are paying for quality.
