| VACUUM-FLASK | [Container with insulated wall] | |
| Hold 1st hand as CONTAINER, and put 2nd CUPPED hand, palm upward & fingers forward-inward, with its palm on back of 1st hand; then slide 2nd hand forward-outward-upwards till side of its thumb touches nails of fingers of 1st hand. | ||
| [Also for THERMOS] | ||