I am very new to hoyas, but all it takes is one cool plant to start a whole new addiction! A friend gave me my hoya as a cutting, which rooted rather easily. I'm hoping to start my collection by swapping my one hoya, and other non-hoyas for ones that have a pleasant but not cloying fragrance, and are easy for beginners to grow. Here are other houseplant like things I have available that haven't yet been added to the big list:

Abutilon 'Souvenir de Bonn' - fresh cutting
Begonia 'Sophia'
Breynia nivosa - Hawaiian snowbush - fresh cutting
Bromeliad/ Neoregelia - this is my best guess at what I have; behaves like a gigantic jew, colors up purplish in the sun.
Brugmansia 'Snowbank' - fresh cutting
Davallia trichomanoides - Squirrel's foot fern
Euphorbia 'Breathless Blush'
Euphorbia/ pedilanthus tithymaloides - variegated Devil's backbone
Ficus elastica Tricolor
Gibasis geniculata - Tahitian Bridal Veil
Haemaria discolor - Jewel orchid, acts more like a jew than an orchid!
Hoya carnosa (I believe) rooted cutting
Oleander, red - fresh cuttings
Passiflora caerulea - rooted cutting
Pellonia 'Watermelon'
Peperomia obtusifolia, fresh cutting
Philodendron erubescens - black leaved variety
Plectranthus 'Mona Lavender'
Scindapsus pictus argyraeus - Silver pothos
Seemania sylvatica 'Bolivian Sunset' - Hardy Gloxinia
Tradescantia sillamontana - Fuzzy jew
Tradescantia fluminensis variegata
Tradescantia zebrina
Tender Sedums and succulents:
Aptenia cordifolia variegata
Bryophyllum - variety that has purple speckled leaves and blooms great big chandeliers of peachy bells.
Sanseveria 'Coppertone'
Variety of sedums, graptosedum, haworthia, etc

Please check my trade lists as well:)
~Heather