Can these swastiks be made on canvas and fixed?

The symbols are taken from the Vedic tradition, such as the swastik, but they are designed with an added element that generates and spreads their energy, and the material they are engraved on matters. Each piece was to be shown physically in class.

No. Every item has rules: the height at which it is fixed, placing it inside, never at foot level and never in a toilet. A swastik is never put in a toilet at any cost, and there is no reason to activate devtas inside a toilet, since that gives their place to the toilet.

No. The swastik and Om are the most sacred symbols, and a swastik generates about 10 lakh bovis of energy; when such bricks end up in toilets and floors, people walk and relieve themselves on it, and the same amount of negative energy is generated in the house, harming all work. In one case a family built a whole house of swastik bricks, and within three months of griha pravesh three members died in an accident and another later died of a heart attack. Recommend plain burnt clay bricks (fly ash bricks are not good either); where swastik bricks are already laid, spray gomutra (cow urine) on them before plastering.

It need not be hidden. The swastik is the most energetic symbol, and you already hang curtains and many other things that people see. Hang it or stick it as the space allows; if you keep worrying about what people will say, it will not give results.

Put five haldi, five supari, panch ratna and a silver swastik into it, then fill it completely with sand.

If it is kept with a purpose there is no problem; it depends on the purpose for which the statue was made and is kept.