Purim is not the only time we give gifts. Afikoman presents, anyone?
And although Mishloach monos is customarily food-items only, that is because it is a machlokes if one can be yoitze with other items. There are poskim who hold that is need not be food related. See Pri Megadim 692;1, who is mistapek. Derech Hachaim (Hil. Purim) allows, and Turei Even (avnei Shoham 7b) mashma also that he OKs it.