Fun things to do:
Baking
A bit late to start a Simnel cake for this year, but we always had a discussion about whether we would put 11 or 12 marzipan balls around the outside (that is, whether to include Judas).
We always made hot cross buns on Good Friday (they take the whole day to rise, given how cold it is in spring around here), and then finished baking them early Holy Saturday morning and glazed them, to break our fast with a sticky bun breakfast.
Bake Easter biscuits: choose shapes that seem appropriate to you. I bet you could make window biscuits with the window in the shape of a cross.
The old no-bake classic of cereal mixed with melted chocolate. Shredded wheat or similar is best for making convincing ‘nests’, to fill with little chocolate eggs. “How often I have longed to gather you under my wings”, God longing to protect us and gather us as a bird protects and gathers its eggs.
Decorate
Decorate eggs - look up Eastern European techniques like pysanky, and the symbolism people use.
Blow eggs and decorate the shells. String them on ribbon and hang them up. Make them as religiously symbolic as you like: the continuous shell represents eternity/infinity.
Cut some flowers and/or blossoming branches, put them in a vase, decorate with whatever decorations you can think up. Maybe there should be some thorns? Maybe a palm cross?
Make an Easter garden. Get a tray or plate, dig up some moss or a piece of turf from outside, maybe lay a bit of soil, make a calvary hill? Plant some small flowers or tiny plants from outside? Lash some sticks together to make crosses? Could you even make a little empty tomb?
Have an egg hunt, whether or not you jokingly claim the Easter Bunny hides the eggs. Why not? Especially if you decorated symbolic eggs earlier.
Sing some Easter hymns. Can you manage two parts together? Maybe try “Jubilate Deo” as a round, if you know that one, or “Rejoice in the Lord always”.