In domestic thermos small size is screwed on top of the cap, which is often a too strong tightening the cracks or even breaks. Instead of trying to stick together, it should be replaced by a suitable diameter plastic cups.
Recommend to read
IMPROMPTU FUNNEL
If you need to pour the liquid from the jar into a container with a narrow neck and a funnel on hand that can be use inverted lid with a hole from a teapot or sugar bowl. R. MOROSIN, Vologda
SUGGESTED FANTASY
Metal caps with crimped edges from the bottles of mineral water, juices and soft drinks, cans, cuts the wires — all this "junk" material in the hands of Michael G. Pavlova, a pensioner...
