2. If they prefer tonic, consider sending them some medicinal materials and the like;
3. Giving gifts to elders should be considered from the intimate aspect. It's winter. You can consider giving your elders thermal underwear, down jackets, silk quilts, etc. Send warmth to the elders, let them feel the thoughtfulness and concern from the younger generation, and their hearts will be warm;
4, you can send masseurs to elders and the like, hoping to help them reduce fatigue and massage them instead of us, and a masseur is on call;
If you work in other places, you can consider bringing some local products home for your elders to taste. I believe that they rarely travel far away and will not buy these foods, so that they can taste foreign things.