Final answer:
Items not muktzeh on Jewish holidays but are on Shabbat include cooking utensils and, in some cases, writing instruments, as cooking and certain types of work are allowed on holidays for the purpose of enjoying the holiday, but not on Shabbat.
Step-by-step explanation:
Objects that are not muktzeh on Jewish holidays but are on Shabbat often pertain to activities that are permissible on holidays but not on Shabbat. One example is items related to cooking, such as pots and pans. Cooking is allowed on holidays when it is for the purpose of eating the food on that same holiday, whereas it is not permitted on Shabbat. Another example could be writing instruments which, according to some authorities, may be used on holidays to perform tasks that enhance the enjoyment of the holiday, but are forbidden on Shabbat as writing is one of the 39 prohibited activities.
In the context of religious practice, the distinction between Shabbat and holidays like Sukkot and Passover affects what items are considered muktzeh, as different activities are sanctified or permitted depending on the day. The preparation for Passover, for instance, includes many actions that are not permissible on Shabbat, such as searching for leavened bread with a candle or slaughtering sheep. This is reflective of the transition from agricultural practices in early Jewish history to the observances adapted to urban life, as described in historical accounts.