The cuttings are well healed over so I would suggest. . .
Getting some potting soil, mix it with about 1/4 sand, stir well, moisten, fill pots and shove cuttings into soil. The usual start-a-succulent thing; they are easy to start. Just water the soil when dry to about 1/2 inch; make sure the cuttings are in the soil at least an inch or so. The longer the cutting, the deeper you can place it in the soil.
The bean looking plant I was told was "baked bean plant" you can tuck the stem in the soil or break off a couple of beans and put the beans in the soil with the stem spot in the soil.
The plant that looks like green string covered with scales will root if a piece falls on the ground and contacts soil, very easy to grow.
I also sent you a rosette style succulent that roots very easily and when established will love full sun, and will give you (with luck) bright poppy like flowers on long stems. This stuff is planted on the side of a hill down by my brother's house in Encinitas and as it is planted en-masse, it is quite spectacular in bloom; very pretty, bright flowers
As for the red christmas cactus/zygocactus thing--I thought it turned red from water stress (mine doesn't get much water during the summer) but I have been watering it regularly, still looks red. Maybe will stay red? You also have another cactus of the same sort; this one is from my late mother-in-law's plant that I inherited and have managed to make thrive; it blooms pink between Thanksgiving and Christmas, or whenever the nights are long enough. If I can remember to let it go dry for 6 weeks before a date, I can get it to bloom around that date. . . As for growing the christmas cactuses, let them go dry between waterings or they will get a bacterial disease and will wilt and die. If the soil is soggy and the plants are wilting, they are goners in my experience.
Have fun with you cuttings and good luck!