Don't listen to all the negative response, must be frustrationg you right now!
I have hosted a few weddings that the bride had little or no money to spend on.
Having a photo booth is an excellent idea as long as you stick with your wedding theme, have someone or a few persons in your wedding party that you can rely on set up the photo booth, you can have costumes, very light costume, such as pirates hats, swords, straw skirts and wigs, so ur guests can dress up and take photos, you can purchase deposable cameras if this is within your budget n have ur guests take photo dressing up and allow you to have the camera back after the reception to print photos and create a wedding scrap book, guarantee this will come in handy if you and ur husband have a fight , you can sit over a glass of wine and laugh at the silly but best moments of your wedding day! You can also have the MC do a Jamaica lingo dance at your wedding where you and the groom participants. There are so much to do for your wedding it only take a few research online , this will be ur wedding day so make it creative cause your gonna live with these memories for the rest of ur live, good luck...:)