Nick here from Shopify, great question!
A couple of things to note with what you're looking for. You mentioned you are only getting started and looking for this to be a seasonal store. Because of this, I would lean more to suggesting a free Shopify theme built for selling fashion or clothing. I feel that is the category which best encompasses what you are trying to sell and a lot of those themes are able to handle multiple different types of products such as what you are trying to do. There are five themes which I would recommend here and you can find them below:
If you are willing to spend money on a theme (once-off payment) there are a good few paid themes developed by third-party developers you could also look into if they fit what you want to accomplish. You can see them in the theme store here.
Are there any themes you see which you might like and is there anything specific you want or need in a theme? Let me know!