How I can make a robust 2 'area for a work of art?

I need to create or buy an area of approximately 2 "in diameter. You must be strong enough to support plaster casts or foam filled molded human arms attached to the surface as if radiating from the origin. So optimal, the arms must be well enough attached to the sphere of support from the ground. I am open to any idea of what the material of the sphere, arms, or how to connect the two.

Use a large beach ball (they come in sizes up to 5 feet), place it in a plastic garbage bag, then covered with foil, tape if necessary. place on a round waste paper basket / bin, painting or palette with fiberglass resin and covered with cloth fiberglass; cure, inverted repeat. Build as many layers as you think you need to keep strong. You should sand between coats. Follow all precautions when working with fiberglass resin. Once cured, be able to drill and bolt fittings. You could do paper mache, if your attachments are similar. That would much easier, cheaper and less toxic. It would be like a giant piñata. See video links below:

BioShock – Breaking The Mold Concept Art

Wilton Chocolate Pro Electric Melting Pot $21.00 The Chocolate Pro Melting Pot. It’s easier than ever to melt large amounts of chocolate or confectionery coating! With the Chocolate Pro it takes only minutes! With this you will be able to mold lollipops and fancy dipped-center candies. Dip things like fruits, pretzels, cake, and so much more! Create flavored chocolate sauces for ice cream or silky ganache glaze to pour over cakes. Features: 2.5 …

Fred & Friends Ninjabread Men Cookie Cutters $6.75 Fred & Friends Ninjabread Men Cookie Cutters….

Wilton 2105-4923 24-Cavity Silicone Brownie-Squares Baking Mold $5.50 Bake fun shaped brownies, decorate, and add a stick for a unique brownie pop treat! Wilton Silicone Molds are flexible so removing your treats is easy, and are safe for freezer, oven (up to 500F/260C), microwave, and dishwasher. Stain and odor resistant. This package contains one silicone mold (13″ x 8-1/2″ x 1″) with (24) 1-1/2″ x 1-1/2″ cavities and one design. Brownie mix and sticks sold separa…

Melt Art Made Easy with Suze Weinberg $21.25 Learn the basics of Ultra Thick Embossing Enamel (UTEE) and the Melting Pot in this fabulous DVD. Suze shows you how to create 8 fast and fabulous projects for gifts, cards, and home decor. Projects: Instant Art Transferz, Suncatcher, Faux Dichroic Glass, Shrink Plastic Push Pins, Faux Soldering, Faux Cloisonne, and Beeswax on canvas. Bonus Features: uses for left-over UTEE, fast & easy projects, …

Mastering Mold Making Part-2 Two-Part and Complex Molds $28.50 Michael Kryger’s Mastering DVD Series Part 2- Making 2-Part & Complex MoldsMaster mold maker and internationally renown artist Michael Kryger takes beginning mold making step-by-step to show how to create molds and beautiful castings for fun or profit. This 60 minute DVD is an introduction to: Advanced Silicone Molds Advanced Resin Casting Two Part Molds Injection Casting Demolding and Finish…

Mastering Mold Making – Part 1 $27.67 This is Part 1 of Michael Kryger’s informative Mastering Mold Making series. This DVD explains how to create mold boxes, and basic one piece molds, block molds, and blanket molds. Michael shows you how to attach venting sprues to create bubble free molds. You will learn how to create silicone molds and resin castings and learn how to operate and used a vacuum chamber to deaire your rubber mold mat…

Chocolates and Confections: Formula, Theory, and Technique for the Artisan Confectioner $36.84 Book annotation not available for this title.Title: Chocolates and ConfectionsAuthor: Greweling, Peter P./ Culinary Institute of America (CON)Publisher: John Wiley & Sons IncPublication Date: 2007/03/06Number of Pages: 388Binding Type: HARDCOVERLibrary of Congress: 2006004538…

Milk Soapmaking: The Smart and Simple Guide to Making Lovely Milk Soap From Cow Milk, Goat Milk, Buttermilk, Cream, Coconut Milk, or Any Other Animal or Plant Milk $9.17  SPECIAL NOTE! — ANNE WILL PERSONALLY ANSWER ANY QUESTION OF YOURS AFTER READING THIS BOOK. ASK ON HER WEB SITE, AND YOU’LL NORMALLY HEAR BACK WITHIN HOURS! Do you love the feel of milk soaps but shy away from the cost? Are you looking for a special kind of gift you can make yourself? Or do you already make soap and want to try something new? Anne L. Watson’s “Smart Soapmaking” was the first b…

The Polymer Clay Techniques Book $13.45 Everyone can achieve great results with polymer clay. With the 50+ techniques in this book, readers can create polymer clay buttons or boxes or anything in between. Starting with the very basics (such as rolling, baking and gluing), then it moves on to more advanced methods: marbling, texturing, millefoiri, bead-making, faux-stone effects and more. Feature spreads show exciting ways to combine tec…

Silikomart FruitsSemifreddi Relief Mat, 2 Inch $89.95 Eric Del Castillo Roberto Canedo Maria Cardenal…