If the bride to be likes to bake, a good gift basket could include cookie cutters, oven mitts, a tea towel, some cake decorations and recipe book.
If she likes to cook you could exchange the cookie cutters and decorations for herb and spice packets and a few kitchen gadgets such as a garlic press, can opener and chef's knife.
Wine Glass Cookie Cutter
If you prefer the romantic type of gift basket then a couple of nice glasses, a cork screw, a linen napkin, a bottle of wine (or champagne) and a small box of chocolates would make a perfect bridal shower gift.
A linen theme would require you to find out from the bride to be what her color scheme is. Once you have this it is easy to fill the basket with sheets, pillowcases, towels and a few smaller items such as flannels or cloth napkins. A couple of sachets of scented lavender or something similar will finish it off nicely.
A lingerie gift basket must be well thought out if it is a family affair. Skimpy underwear being pulled out in front of her mother and mother in law to be will not endear you to the bride to be. Think pajamas and a robe instead. If it is a shower for just close friends then you can treat her to all the flimsy nighties you can afford.
Spa gifts and toiletries are a lovely idea for a bridal shower gift basket as there is so much choice and it will mean she has some lovely new luxuries to take on her honeymoon. Try a lavender theme or an organic theme.
Whatever you choose to put in your gift basket it is a lovely way to show the bride to be that you care.