Birthday gift suggestions

So basically I wanna talk about birthday presents,my birthday is pretty close,(it only In like two months) so my dad told me I could just order a gift for my birthday,I agreed but the thing is I don't know what to get,I've been thinking about getting an iPod or a flip-phone,but the thing is I don't know if I would actually use them,so I'm planning on getting something fun and useful at the same time!,and that's the problem,I don't know what 'thing' to get:-C,if ou have suggestions for my birthday gift that would super useful!!